diff --git a/BiometricAuth/biometricauthwidget.cpp b/BiometricAuth/biometricauthwidget.cpp
index a7b552d..4a03938 100644
--- a/BiometricAuth/biometricauthwidget.cpp
+++ b/BiometricAuth/biometricauthwidget.cpp
@@ -1,9 +1,9 @@
-/**
+/*
  * Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
+ * the Free Software Foundation; either version 3, or (at your option)
  * any later version.
  *
  * This program is distributed in the hope that it will be useful,
@@ -12,9 +12,8 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
 **/
 #include "biometricauthwidget.h"
 #include <QLabel>
diff --git a/BiometricAuth/biometricauthwidget.h b/BiometricAuth/biometricauthwidget.h
index e380abf..8390a02 100644
--- a/BiometricAuth/biometricauthwidget.h
+++ b/BiometricAuth/biometricauthwidget.h
@@ -1,9 +1,9 @@
-/**
+/*
  * Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
+ * the Free Software Foundation; either version 3, or (at your option)
  * any later version.
  *
  * This program is distributed in the hope that it will be useful,
@@ -12,9 +12,8 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
 **/
 #ifndef BIOMETRICAUTHWIDGET_H
 #define BIOMETRICAUTHWIDGET_H
diff --git a/BiometricAuth/biometricdeviceinfo.cpp b/BiometricAuth/biometricdeviceinfo.cpp
index f49881e..ad0da07 100644
--- a/BiometricAuth/biometricdeviceinfo.cpp
+++ b/BiometricAuth/biometricdeviceinfo.cpp
@@ -1,9 +1,9 @@
-/**
+/*
  * Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
+ * the Free Software Foundation; either version 3, or (at your option)
  * any later version.
  *
  * This program is distributed in the hope that it will be useful,
@@ -12,9 +12,8 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
 **/
 #include "biometricdeviceinfo.h"
 
diff --git a/BiometricAuth/biometricdeviceinfo.h b/BiometricAuth/biometricdeviceinfo.h
index 7ffb27a..31cf9ac 100644
--- a/BiometricAuth/biometricdeviceinfo.h
+++ b/BiometricAuth/biometricdeviceinfo.h
@@ -1,9 +1,9 @@
-/**
+/*
  * Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
+ * the Free Software Foundation; either version 3, or (at your option)
  * any later version.
  *
  * This program is distributed in the hope that it will be useful,
@@ -12,9 +12,8 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
 **/
 #ifndef BIOMETRICDEVICEINFO_H
 #define BIOMETRICDEVICEINFO_H
diff --git a/BiometricAuth/biometricdeviceswidget.cpp b/BiometricAuth/biometricdeviceswidget.cpp
index 856b750..0766ae3 100644
--- a/BiometricAuth/biometricdeviceswidget.cpp
+++ b/BiometricAuth/biometricdeviceswidget.cpp
@@ -1,9 +1,9 @@
-/**
+/*
  * Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
+ * the Free Software Foundation; either version 3, or (at your option)
  * any later version.
  *
  * This program is distributed in the hope that it will be useful,
@@ -12,9 +12,8 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
 **/
 #include "biometricdeviceswidget.h"
 #include <QLabel>
diff --git a/BiometricAuth/biometricproxy.cpp b/BiometricAuth/biometricproxy.cpp
index 85637a4..644d9f7 100644
--- a/BiometricAuth/biometricproxy.cpp
+++ b/BiometricAuth/biometricproxy.cpp
@@ -1,9 +1,9 @@
-/**
+/*
  * Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
+ * the Free Software Foundation; either version 3, or (at your option)
  * any later version.
  *
  * This program is distributed in the hope that it will be useful,
@@ -12,9 +12,8 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
 **/
 #include "biometricproxy.h"
 #include <QDebug>
diff --git a/BiometricAuth/biometricproxy.h b/BiometricAuth/biometricproxy.h
index ac03881..4452a7e 100644
--- a/BiometricAuth/biometricproxy.h
+++ b/BiometricAuth/biometricproxy.h
@@ -1,9 +1,9 @@
-/**
+/*
  * Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
+ * the Free Software Foundation; either version 3, or (at your option)
  * any later version.
  *
  * This program is distributed in the hope that it will be useful,
@@ -12,9 +12,8 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
 **/
 #ifndef BIOMETRICPROXY_H
 #define BIOMETRICPROXY_H
diff --git a/BiometricAuth/giodbus.cpp b/BiometricAuth/giodbus.cpp
index 9e0490e..399aa0e 100644
--- a/BiometricAuth/giodbus.cpp
+++ b/BiometricAuth/giodbus.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2021 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include "giodbus.h"
 #include <gio/gio.h>
 #include <gio-unix-2.0/gio/gunixfdlist.h>
diff --git a/BiometricAuth/giodbus.h b/BiometricAuth/giodbus.h
index 13e0880..a75f989 100644
--- a/BiometricAuth/giodbus.h
+++ b/BiometricAuth/giodbus.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2021 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef GIODBUS_H
 #define GIODBUS_H
 
diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..94a9ed0
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
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+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
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+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
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+States should not allow patents to restrict development and use of
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+    Notices displayed by works containing it; or
+
+    c) Prohibiting misrepresentation of the origin of that material, or
+    requiring that modified versions of such material be marked in
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+
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+
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+    trade names, trademarks, or service marks; or
+
+    f) Requiring indemnification of licensors and authors of that
+    material by anyone who conveys the material (or modified versions of
+    it) with contractual assumptions of liability to the recipient, for
+    any liability that these contractual assumptions directly impose on
+    those licensors and authors.
+
+  All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10.  If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term.  If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+  If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+  Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+  8. Termination.
+
+  You may not propagate or modify a covered work except as expressly
+provided under this License.  Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+  However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+  Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+  Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License.  If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
+not accept this License.  Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+  10. Automatic Licensing of Downstream Recipients.
+
+  Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License.  You are not responsible
+for enforcing compliance by third parties with this License.
+
+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations.  If propagation of a covered
+work results from an entity transaction, each party to that
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+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+  You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License.  For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/Common/checkbutton.cpp b/Common/checkbutton.cpp
index 14ae327..9962a15 100644
--- a/Common/checkbutton.cpp
+++ b/Common/checkbutton.cpp
@@ -1,11 +1,10 @@
-/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
- *
+/*
  * Copyright (C) 2019 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,10 +12,9 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  *
- */
+**/
 
 #include "checkbutton.h"
 
diff --git a/Common/checkbutton.h b/Common/checkbutton.h
index d6167c9..59f3463 100644
--- a/Common/checkbutton.h
+++ b/Common/checkbutton.h
@@ -1,11 +1,10 @@
-/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
- *
+/*
  * Copyright (C) 2019 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,10 +12,9 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  *
- */
+**/
 
 #ifndef CHECKBUTTON_H
 #define CHECKBUTTON_H
diff --git a/Common/commonfunc.cpp b/Common/commonfunc.cpp
index c80213b..e9aacce 100644
--- a/Common/commonfunc.cpp
+++ b/Common/commonfunc.cpp
@@ -1,11 +1,10 @@
-/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
- *
+/*
  * Copyright (C) 2019 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,10 +12,9 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  *
- */
+**/
 
 #include <QMimeType>
 #include <QSettings>
diff --git a/Common/commonfunc.h b/Common/commonfunc.h
index 43ab4a9..d8f0d02 100644
--- a/Common/commonfunc.h
+++ b/Common/commonfunc.h
@@ -1,11 +1,10 @@
-/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
- *
+/*
  * Copyright (C) 2019 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,10 +12,9 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  *
- */
+**/
 
 #ifndef COMMONFUNC_H
 #define COMMONFUNC_H
diff --git a/KylinNM/src/swipegesturerecognizer.cpp b/KylinNM/src/swipegesturerecognizer.cpp
index 87b553c..dd888c3 100644
--- a/KylinNM/src/swipegesturerecognizer.cpp
+++ b/KylinNM/src/swipegesturerecognizer.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2020 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include <QMouseEvent>
 #include <QDebug>
 
diff --git a/KylinNM/src/swipegesturerecognizer.h b/KylinNM/src/swipegesturerecognizer.h
index 2e51665..4b6c7b8 100644
--- a/KylinNM/src/swipegesturerecognizer.h
+++ b/KylinNM/src/swipegesturerecognizer.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2020 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef SWIPEGESTURERECOGNIZER_H
 #define SWIPEGESTURERECOGNIZER_H
 
diff --git a/KylinNM/src/switchbutton.cpp b/KylinNM/src/switchbutton.cpp
index 714e249..43ad098 100644
--- a/KylinNM/src/switchbutton.cpp
+++ b/KylinNM/src/switchbutton.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2020 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include "switchbutton.h"
 
 SwitchButton::SwitchButton(QWidget *parent) : QWidget(parent)
diff --git a/KylinNM/src/switchbutton.h b/KylinNM/src/switchbutton.h
index 7c0f1e5..8c86bc2 100644
--- a/KylinNM/src/switchbutton.h
+++ b/KylinNM/src/switchbutton.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2020 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef SWITCHBUTTON_H
 #define SWITCHBUTTON_H
 
diff --git a/VirtualKeyboard/src/cursormonitor.cpp b/VirtualKeyboard/src/cursormonitor.cpp
index 2c76123..9553a60 100644
--- a/VirtualKeyboard/src/cursormonitor.cpp
+++ b/VirtualKeyboard/src/cursormonitor.cpp
@@ -1,9 +1,9 @@
-/**
+/*
  * Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
+ * the Free Software Foundation; either version 3, or (at your option)
  * any later version.
  *
  * This program is distributed in the hope that it will be useful,
@@ -12,9 +12,8 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
 **/
 #include "cursormonitor.h"
 #include <X11/Xlib.h>
diff --git a/VirtualKeyboard/src/cursormonitor.h b/VirtualKeyboard/src/cursormonitor.h
index 7722453..bacf21f 100644
--- a/VirtualKeyboard/src/cursormonitor.h
+++ b/VirtualKeyboard/src/cursormonitor.h
@@ -1,9 +1,9 @@
-/**
+/*
  * Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
+ * the Free Software Foundation; either version 3, or (at your option)
  * any later version.
  *
  * This program is distributed in the hope that it will be useful,
@@ -12,9 +12,8 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
 **/
 #ifndef CURSORMONITOR_H
 #define CURSORMONITOR_H
diff --git a/VirtualKeyboard/src/keyboardwidget.cpp b/VirtualKeyboard/src/keyboardwidget.cpp
index e97a710..be86698 100644
--- a/VirtualKeyboard/src/keyboardwidget.cpp
+++ b/VirtualKeyboard/src/keyboardwidget.cpp
@@ -1,9 +1,9 @@
-/**
+/*
  * Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
+ * the Free Software Foundation; either version 3, or (at your option)
  * any later version.
  *
  * This program is distributed in the hope that it will be useful,
@@ -12,9 +12,8 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
 **/
 #include "keyboardwidget.h"
 #include "ui_keyboardwidget.h"
diff --git a/VirtualKeyboard/src/keyboardwidget.h b/VirtualKeyboard/src/keyboardwidget.h
index 25591ae..d735ebd 100644
--- a/VirtualKeyboard/src/keyboardwidget.h
+++ b/VirtualKeyboard/src/keyboardwidget.h
@@ -1,9 +1,9 @@
-/**
+/*
  * Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
+ * the Free Software Foundation; either version 3, or (at your option)
  * any later version.
  *
  * This program is distributed in the hope that it will be useful,
@@ -12,9 +12,8 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
 **/
 #ifndef KEYBOARDWIDGET_H
 #define KEYBOARDWIDGET_H
diff --git a/VirtualKeyboard/src/virtualkeyboard.cpp b/VirtualKeyboard/src/virtualkeyboard.cpp
index bdc65a7..0ad995f 100644
--- a/VirtualKeyboard/src/virtualkeyboard.cpp
+++ b/VirtualKeyboard/src/virtualkeyboard.cpp
@@ -1,9 +1,9 @@
-/**
+/*
  * Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
+ * the Free Software Foundation; either version 3, or (at your option)
  * any later version.
  *
  * This program is distributed in the hope that it will be useful,
@@ -12,9 +12,8 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
 **/
 #include "virtualkeyboard.h"
 #include <QFile>
diff --git a/VirtualKeyboard/src/virtualkeyboard.h b/VirtualKeyboard/src/virtualkeyboard.h
index 44b628a..8bdbc52 100644
--- a/VirtualKeyboard/src/virtualkeyboard.h
+++ b/VirtualKeyboard/src/virtualkeyboard.h
@@ -1,9 +1,9 @@
-/**
+/*
  * Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
+ * the Free Software Foundation; either version 3, or (at your option)
  * any later version.
  *
  * This program is distributed in the hope that it will be useful,
@@ -12,9 +12,8 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
 **/
 #ifndef VIRTUALKEYBOARD_H
 #define VIRTUALKEYBOARD_H
diff --git a/VirtualKeyboard/src/vkstackedwidget.cpp b/VirtualKeyboard/src/vkstackedwidget.cpp
index 1e966bb..3e46729 100644
--- a/VirtualKeyboard/src/vkstackedwidget.cpp
+++ b/VirtualKeyboard/src/vkstackedwidget.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2022 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include "vkstackedwidget.h"
 
 VKStackedWidget::VKStackedWidget(QWidget *parent/* = nullptr*/)
diff --git a/VirtualKeyboard/src/vkstackedwidget.h b/VirtualKeyboard/src/vkstackedwidget.h
index 8ca4994..fb737ff 100644
--- a/VirtualKeyboard/src/vkstackedwidget.h
+++ b/VirtualKeyboard/src/vkstackedwidget.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2022 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef VKSTACKEDWIDGET_H
 #define VKSTACKEDWIDGET_H
 
diff --git a/VirtualKeyboard/src/x11keyboard.cpp b/VirtualKeyboard/src/x11keyboard.cpp
index 5e160ed..02a196a 100644
--- a/VirtualKeyboard/src/x11keyboard.cpp
+++ b/VirtualKeyboard/src/x11keyboard.cpp
@@ -1,9 +1,9 @@
-/**
+/*
  * Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
+ * the Free Software Foundation; either version 3, or (at your option)
  * any later version.
  *
  * This program is distributed in the hope that it will be useful,
@@ -12,9 +12,8 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
 **/
 #include "x11keyboard.h"
 #include <QDebug>
diff --git a/VirtualKeyboard/src/x11keyboard.h b/VirtualKeyboard/src/x11keyboard.h
index 42fd997..f3bf757 100644
--- a/VirtualKeyboard/src/x11keyboard.h
+++ b/VirtualKeyboard/src/x11keyboard.h
@@ -1,9 +1,9 @@
-/**
+/*
  * Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
+ * the Free Software Foundation; either version 3, or (at your option)
  * any later version.
  *
  * This program is distributed in the hope that it will be useful,
@@ -12,9 +12,8 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
 **/
 #ifndef X11KEYBOARD_H
 #define X11KEYBOARD_H
diff --git a/debian/copyright b/debian/copyright
index 1d740f2..34d2316 100644
--- a/debian/copyright
+++ b/debian/copyright
@@ -13,7 +13,13 @@ Files: CMakeLists.txt
        .gitattributes
        KylinNM/*
        .config.h.in
+       screensaver-focus-helper/*
+       set4kScale/*
 Copyright: 2018, Tianjin KYLIN Information Technology Co., Ltd.
+           2019, Tianjin KYLIN Information Technology Co., Ltd.
+           2020, Tianjin KYLIN Information Technology Co., Ltd.
+           2021, Tianjin KYLIN Information Technology Co., Ltd.
+           2022, Tianjin KYLIN Information Technology Co., Ltd.
 License: GPL-3+
 
 Files: src/xeventmonitor.h
@@ -26,7 +32,9 @@ License: GPL-3+
 Files: BiometricAuth/*
        VirtualKeyboard/*
 Copyright: 2018, Tianjin KYLIN Information Technology Co., Ltd.
-License: GPL-2+
+           2021, Tianjin KYLIN Information Technology Co., Ltd.
+           2022, Tianjin KYLIN Information Technology Co., Ltd.
+License: GPL-3+
 
 License: GPL-3+
  This package is free software; you can redistribute it and/or modify
diff --git a/examples/LoadCustomPlugin/widget.h b/examples/LoadCustomPlugin/widget.h
index 43d6a87..02e7658 100644
--- a/examples/LoadCustomPlugin/widget.h
+++ b/examples/LoadCustomPlugin/widget.h
@@ -1,4 +1,21 @@
-#ifndef WIDGET_H
+/*
+ * Copyright (C) 2022 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
+#ifndef WIDGET_H
 #define WIDGET_H
 
 #include <QWidget>
diff --git a/screensaver-focus-helper/blackwindow.cpp b/screensaver-focus-helper/blackwindow.cpp
index 52f270e..0830595 100644
--- a/screensaver-focus-helper/blackwindow.cpp
+++ b/screensaver-focus-helper/blackwindow.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2021 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include "blackwindow.h"
 #include <QColor>
 #include <QGuiApplication>
diff --git a/screensaver-focus-helper/blackwindow.h b/screensaver-focus-helper/blackwindow.h
index 9f30d24..6d1f071 100644
--- a/screensaver-focus-helper/blackwindow.h
+++ b/screensaver-focus-helper/blackwindow.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2021 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef BLACKWINDOW_H
 #define BLACKWINDOW_H
 
diff --git a/screensaver-focus-helper/main.cpp b/screensaver-focus-helper/main.cpp
index 35a93f6..70b9982 100644
--- a/screensaver-focus-helper/main.cpp
+++ b/screensaver-focus-helper/main.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2021 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include <QCoreApplication>
 #include <QTimer>
 #include <QDebug>
diff --git a/screensaver/customplugin.cpp b/screensaver/customplugin.cpp
index afacc06..0ac4702 100644
--- a/screensaver/customplugin.cpp
+++ b/screensaver/customplugin.cpp
@@ -1,4 +1,21 @@
-#include "customplugin.h"
+/*
+ * Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
+#include "customplugin.h"
 #include "screensaver.h"
 
 CustomPlugin::CustomPlugin(QObject *parent):QObject(parent)
diff --git a/screensaver/customplugin.h b/screensaver/customplugin.h
index 2d041f7..49f3b07 100644
--- a/screensaver/customplugin.h
+++ b/screensaver/customplugin.h
@@ -1,4 +1,21 @@
-#ifndef CUSTOMPLUGIN_H
+/*
+ * Copyright (C) 2022 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
+#ifndef CUSTOMPLUGIN_H
 #define CUSTOMPLUGIN_H
 
 #include "screensaverplugin.h"
diff --git a/screensaver/cyclelabel.cpp b/screensaver/cyclelabel.cpp
index a97f42f..f6c847a 100644
--- a/screensaver/cyclelabel.cpp
+++ b/screensaver/cyclelabel.cpp
@@ -1,11 +1,10 @@
-/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
- *
+/*
  * Copyright (C) 2019 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,10 +12,9 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  *
- */
+**/
 
 #include "cyclelabel.h"
 
diff --git a/screensaver/cyclelabel.h b/screensaver/cyclelabel.h
index 9967836..b8b2af6 100644
--- a/screensaver/cyclelabel.h
+++ b/screensaver/cyclelabel.h
@@ -1,11 +1,10 @@
-/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
- *
+/*
  * Copyright (C) 2019 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,10 +12,9 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  *
- */
+**/
 
 #ifndef CYCLELABEL_H
 #define CYCLELABEL_H
diff --git a/screensaver/screensaverplugin.h b/screensaver/screensaverplugin.h
index 041bf38..4fcd9ff 100644
--- a/screensaver/screensaverplugin.h
+++ b/screensaver/screensaverplugin.h
@@ -1,4 +1,21 @@
-#ifndef SCREENSAVER_PLUGIN_H
+/*
+ * Copyright (C) 2022 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
+#ifndef SCREENSAVER_PLUGIN_H
 #define SCREENSAVER_PLUGIN_H
 
 #include <QWidget>
diff --git a/set4kScale/main.cpp b/set4kScale/main.cpp
index 5ec6932..5042642 100644
--- a/set4kScale/main.cpp
+++ b/set4kScale/main.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2022 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include <QCoreApplication>
 #include <QTimer>
 #include <QFileInfo>
diff --git a/src/PhysicalDeviceSet/brightnessdeviceset.cpp b/src/PhysicalDeviceSet/brightnessdeviceset.cpp
index 455c5d0..5e25b9f 100644
--- a/src/PhysicalDeviceSet/brightnessdeviceset.cpp
+++ b/src/PhysicalDeviceSet/brightnessdeviceset.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2022 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include "brightnessdeviceset.h"
 
 int BrightnessDeviceSet::m_value = -1;
diff --git a/src/PhysicalDeviceSet/brightnessdeviceset.h b/src/PhysicalDeviceSet/brightnessdeviceset.h
index 77cd162..c361c9d 100644
--- a/src/PhysicalDeviceSet/brightnessdeviceset.h
+++ b/src/PhysicalDeviceSet/brightnessdeviceset.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2020 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef BRIGHTNESSDEVICESET_H
 #define BRIGHTNESSDEVICESET_H
 
diff --git a/src/PhysicalDeviceSet/flightmodeset.cpp b/src/PhysicalDeviceSet/flightmodeset.cpp
index adcbf67..33e4616 100644
--- a/src/PhysicalDeviceSet/flightmodeset.cpp
+++ b/src/PhysicalDeviceSet/flightmodeset.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2020 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include "flightmodeset.h"
 
 bool FlightModeSet::m_isFlightModeOpen = false;
diff --git a/src/PhysicalDeviceSet/flightmodeset.h b/src/PhysicalDeviceSet/flightmodeset.h
index 57842a4..3efcd0a 100644
--- a/src/PhysicalDeviceSet/flightmodeset.h
+++ b/src/PhysicalDeviceSet/flightmodeset.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2020 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef FLIGHTMODESET_H
 #define FLIGHTMODESET_H
 /*!
diff --git a/src/PhysicalDeviceSet/sounddeviceset.cpp b/src/PhysicalDeviceSet/sounddeviceset.cpp
index f16ba8c..876708f 100644
--- a/src/PhysicalDeviceSet/sounddeviceset.cpp
+++ b/src/PhysicalDeviceSet/sounddeviceset.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2021 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include "sounddeviceset.h"
 
 int SoundDeviceSet::m_value = -1;
diff --git a/src/PhysicalDeviceSet/sounddeviceset.h b/src/PhysicalDeviceSet/sounddeviceset.h
index 2b98aaa..12701bd 100644
--- a/src/PhysicalDeviceSet/sounddeviceset.h
+++ b/src/PhysicalDeviceSet/sounddeviceset.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2020 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef SOUNDDEVICESET_H
 #define SOUNDDEVICESET_H
 
diff --git a/src/PhysicalDeviceSet/touchscreenset.cpp b/src/PhysicalDeviceSet/touchscreenset.cpp
index 0ba4449..9884078 100644
--- a/src/PhysicalDeviceSet/touchscreenset.cpp
+++ b/src/PhysicalDeviceSet/touchscreenset.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2020 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include "touchscreenset.h"
 
 #include <QMutex>
diff --git a/src/PhysicalDeviceSet/touchscreenset.h b/src/PhysicalDeviceSet/touchscreenset.h
index fd6c5ef..096ce9e 100644
--- a/src/PhysicalDeviceSet/touchscreenset.h
+++ b/src/PhysicalDeviceSet/touchscreenset.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2020 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef TOUCHSCREENSET_H
 #define TOUCHSCREENSET_H
 
diff --git a/src/accountsinterface.cpp b/src/accountsinterface.cpp
index 4b6abb5..7bc8cbb 100644
--- a/src/accountsinterface.cpp
+++ b/src/accountsinterface.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2019 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include "accountsinterface.h"
 
 const QString STR_EDU_SERVICE = "cn.kylinos.SSOBackend";
diff --git a/src/accountsinterface.h b/src/accountsinterface.h
index cc97edd..2e1a0d5 100644
--- a/src/accountsinterface.h
+++ b/src/accountsinterface.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2020 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef ACCOUNTSINTERFACE_H
 #define ACCOUNTSINTERFACE_H
 
diff --git a/src/batterywidget.cpp b/src/batterywidget.cpp
index 2cc74e4..d0a1c72 100644
--- a/src/batterywidget.cpp
+++ b/src/batterywidget.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2022 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include "batterywidget.h"
 #include <QVBoxLayout>
 #include <QDBusReply>
diff --git a/src/batterywidget.h b/src/batterywidget.h
index b9d460c..acf9ac5 100644
--- a/src/batterywidget.h
+++ b/src/batterywidget.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2022 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef BATTERYWIDGET_H
 #define BATTERYWIDGET_H
 
diff --git a/src/common.h b/src/common.h
index b7ed8c8..95489cb 100644
--- a/src/common.h
+++ b/src/common.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2021 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef LOCKCOMMON_H
 #define LOCKCOMMON_H
 
diff --git a/src/device.cpp b/src/device.cpp
index f7a62c2..007d30a 100644
--- a/src/device.cpp
+++ b/src/device.cpp
@@ -1,10 +1,10 @@
 /*
- * Copyright 2021 KylinSoft Co., Ltd.
+ * Copyright (C) 2021 Tianjin KYLIN Information Technology Co., Ltd.
  *
- * This program is free software: you can redistribute it and/or modify
+ * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -12,8 +12,9 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 
 #include "device.h"
 #include <QDebug>
diff --git a/src/device.h b/src/device.h
index fd72185..73c8615 100644
--- a/src/device.h
+++ b/src/device.h
@@ -1,10 +1,10 @@
 /*
- * Copyright 2021 KylinSoft Co., Ltd.
+ * Copyright (C) 2021 Tianjin KYLIN Information Technology Co., Ltd.
  *
- * This program is free software: you can redistribute it and/or modify
+ * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -12,8 +12,9 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 
 #ifndef DEVICE_H
 #define DEVICE_H
diff --git a/src/digitalkeyboard.cpp b/src/digitalkeyboard.cpp
index 77239ba..4597ad4 100644
--- a/src/digitalkeyboard.cpp
+++ b/src/digitalkeyboard.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2021 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include "digitalkeyboard.h"
 
 #include <QGridLayout>
diff --git a/src/digitalkeyboard.h b/src/digitalkeyboard.h
index 107a115..4a386fe 100644
--- a/src/digitalkeyboard.h
+++ b/src/digitalkeyboard.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef DIGITALKEYBOARD_H
 #define DIGITALKEYBOARD_H
 
diff --git a/src/eduplatforminterface.cpp b/src/eduplatforminterface.cpp
index 47084ef..6f3384c 100644
--- a/src/eduplatforminterface.cpp
+++ b/src/eduplatforminterface.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2021 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include "eduplatforminterface.h"
 
 const QString STR_EDU_SERVICE = "cn.kylinos.SSOBackend";
diff --git a/src/eduplatforminterface.h b/src/eduplatforminterface.h
index 60e72dc..0a93506 100644
--- a/src/eduplatforminterface.h
+++ b/src/eduplatforminterface.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2020 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef EDUPLATFORMINTERFACE_H
 #define EDUPLATFORMINTERFACE_H
 #include <QtDBus/QtDBus>
diff --git a/src/enginedevice.cpp b/src/enginedevice.cpp
index f67ff9c..f69c95e 100644
--- a/src/enginedevice.cpp
+++ b/src/enginedevice.cpp
@@ -1,10 +1,10 @@
 /*
- * Copyright 2021 KylinSoft Co., Ltd.
+ * Copyright (C) 2021 Tianjin KYLIN Information Technology Co., Ltd.
  *
- * This program is free software: you can redistribute it and/or modify
+ * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -12,9 +12,9 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include "enginedevice.h"
 #include "device.h"
 #include <QDBusObjectPath>
diff --git a/src/hoverwidget.cpp b/src/hoverwidget.cpp
index 67f142d..3c3b55e 100644
--- a/src/hoverwidget.cpp
+++ b/src/hoverwidget.cpp
@@ -1,11 +1,10 @@
-/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
- *
+/*
  * Copyright (C) 2019 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,10 +12,9 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  *
- */
+**/
 #include "hoverwidget.h"
 
 #include <QPainter>
diff --git a/src/hoverwidget.h b/src/hoverwidget.h
index bcb811e..1fcf667 100644
--- a/src/hoverwidget.h
+++ b/src/hoverwidget.h
@@ -1,11 +1,10 @@
-/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
- *
+/*
  * Copyright (C) 2019 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,10 +12,9 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  *
- */
+**/
 #ifndef HOVERWIDGET_H
 #define HOVERWIDGET_H
 
diff --git a/src/iconedit.cpp b/src/iconedit.cpp
index 5280ac8..1f8cf87 100644
--- a/src/iconedit.cpp
+++ b/src/iconedit.cpp
@@ -1,9 +1,9 @@
-/* iconedit.cpp
+/*
  * Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
+ * the Free Software Foundation; either version 3, or (at your option)
  * any later version.
  *
  * This program is distributed in the hope that it will be useful,
@@ -12,9 +12,8 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
 **/
 #include "iconedit.h"
 #include "imageutil.h"
diff --git a/src/iconedit.h b/src/iconedit.h
index 729197d..587f425 100644
--- a/src/iconedit.h
+++ b/src/iconedit.h
@@ -1,9 +1,9 @@
-/* iconedit.h
+/*
  * Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
+ * the Free Software Foundation; either version 3, or (at your option)
  * any later version.
  *
  * This program is distributed in the hope that it will be useful,
@@ -12,9 +12,8 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
 **/
 
 #ifndef ICONEDIT_H
diff --git a/src/imageutil.cpp b/src/imageutil.cpp
index 928d63f..11fe92f 100644
--- a/src/imageutil.cpp
+++ b/src/imageutil.cpp
@@ -1,11 +1,10 @@
-/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
- *
+/*
  * Copyright (C) 2019 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,10 +12,9 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  *
- */
+**/
 
 #include "imageutil.h"
 
diff --git a/src/imageutil.h b/src/imageutil.h
index 92c09d8..ae40c46 100644
--- a/src/imageutil.h
+++ b/src/imageutil.h
@@ -1,11 +1,10 @@
-/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
- *
+/*
  * Copyright (C) 2019 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,10 +12,9 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  *
- */
+**/
 
 #ifndef IMAGEUTIL_H
 #define IMAGEUTIL_H
diff --git a/src/libinputswitchevent.cpp b/src/libinputswitchevent.cpp
index a9aea94..0f30800 100644
--- a/src/libinputswitchevent.cpp
+++ b/src/libinputswitchevent.cpp
@@ -1,20 +1,20 @@
 /*
- * Copyright 2022 KylinSoft Co., Ltd.
+ * Copyright (C) 2022 Tianjin KYLIN Information Technology Co., Ltd.
  *
- * This program is free software: you can redistribute it and/or modify
+ * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with thi1s program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 
 #include "libinputswitchevent.h"
 
diff --git a/src/lockchecker.cpp b/src/lockchecker.cpp
index 7cc44e3..c0533cf 100644
--- a/src/lockchecker.cpp
+++ b/src/lockchecker.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) Copyright 2021 KylinSoft Co., Ltd.
+ * Copyright (C) 2021 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/src/loginedusers.cpp b/src/loginedusers.cpp
index 5d7f440..bd4d247 100644
--- a/src/loginedusers.cpp
+++ b/src/loginedusers.cpp
@@ -3,8 +3,8 @@
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -12,10 +12,9 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  *
- */
+**/
 
 #include "loginedusers.h"
 
diff --git a/src/loginedusers.h b/src/loginedusers.h
index c69ebe5..de1b175 100644
--- a/src/loginedusers.h
+++ b/src/loginedusers.h
@@ -1,11 +1,10 @@
-/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
- *
+/*
  * Copyright (C) 2019 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,10 +12,9 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  *
- */
+**/
 
 #ifndef LOGINEDUSER_H
 #define LOGINEDUSER_H
diff --git a/src/loginoptionswidget.cpp b/src/loginoptionswidget.cpp
index 943cbff..cab7a65 100644
--- a/src/loginoptionswidget.cpp
+++ b/src/loginoptionswidget.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2022 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include "loginoptionswidget.h"
 
 #include <pwd.h>
diff --git a/src/loginoptionswidget.h b/src/loginoptionswidget.h
index c8630da..256ab5c 100644
--- a/src/loginoptionswidget.h
+++ b/src/loginoptionswidget.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2022 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef LOGINOPTIONSWIDGET_H
 #define LOGINOPTIONSWIDGET_H
 
diff --git a/src/monitorwatcher.h b/src/monitorwatcher.h
index 224aeac..0f10599 100644
--- a/src/monitorwatcher.h
+++ b/src/monitorwatcher.h
@@ -1,9 +1,9 @@
-/* monitorwatcher.h
+/*
  * Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
+ * the Free Software Foundation; either version 3, or (at your option)
  * any later version.
  *
  * This program is distributed in the hope that it will be useful,
@@ -12,9 +12,8 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
 **/
 #ifndef MONITORWATCHER_H
 #define MONITORWATCHER_H
diff --git a/src/mytabwidget.cpp b/src/mytabwidget.cpp
index 7256584..dcc2e20 100644
--- a/src/mytabwidget.cpp
+++ b/src/mytabwidget.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2021 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include "mytabwidget.h"
 #include <QStyleOption>
 #include <QPainter>
diff --git a/src/mytabwidget.h b/src/mytabwidget.h
index 65ff60a..732d44d 100644
--- a/src/mytabwidget.h
+++ b/src/mytabwidget.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2021 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef MYTABWIDGET_H
 #define MYTABWIDGET_H
 
diff --git a/src/networkwatcher.cpp b/src/networkwatcher.cpp
index 313eabb..3c57a49 100644
--- a/src/networkwatcher.cpp
+++ b/src/networkwatcher.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2021 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include <QDBusReply>
 #include <QNetworkRequest>
 #include <QNetworkAccessManager>
diff --git a/src/networkwatcher.h b/src/networkwatcher.h
index 71d3d28..a388266 100644
--- a/src/networkwatcher.h
+++ b/src/networkwatcher.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2021 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef NETWORKWATCHER_H
 #define NETWORKWATCHER_H
 #include <QObject>
diff --git a/src/permissioncheck.h b/src/permissioncheck.h
index 94639e5..3af7e9c 100644
--- a/src/permissioncheck.h
+++ b/src/permissioncheck.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2021 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef PERMISSIONCHECK_H
 #define PERMISSIONCHECK_H
 
diff --git a/src/plasma-shell-manager.cpp b/src/plasma-shell-manager.cpp
index f987e4e..98659f0 100644
--- a/src/plasma-shell-manager.cpp
+++ b/src/plasma-shell-manager.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2022 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include "plasma-shell-manager.h"
 
 #include <QApplication>
diff --git a/src/plasma-shell-manager.h b/src/plasma-shell-manager.h
index 1437a88..35516aa 100644
--- a/src/plasma-shell-manager.h
+++ b/src/plasma-shell-manager.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2022 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef PLASMASHELLMANAGER_H
 #define PLASMASHELLMANAGER_H
 
diff --git a/src/screensaverwndadaptor.cpp b/src/screensaverwndadaptor.cpp
index 34761ed..8d4b9a5 100644
--- a/src/screensaverwndadaptor.cpp
+++ b/src/screensaverwndadaptor.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2022 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include "screensaverwndadaptor.h"
 
 #include <QtCore/QMetaObject>
diff --git a/src/screensaverwndadaptor.h b/src/screensaverwndadaptor.h
index 0641c0c..77c3dde 100644
--- a/src/screensaverwndadaptor.h
+++ b/src/screensaverwndadaptor.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2022 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef SCREENSAVERWNDADAPTOR_H
 #define SCREENSAVERWNDADAPTOR_H
 
diff --git a/src/surewindow.cpp b/src/surewindow.cpp
index 8ee86e4..d8f07ea 100644
--- a/src/surewindow.cpp
+++ b/src/surewindow.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2022 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include "surewindow.h"
 #include "ui_surewindow.h"
 #include <QDebug>
diff --git a/src/surewindow.h b/src/surewindow.h
index 8f15d27..62bc402 100644
--- a/src/surewindow.h
+++ b/src/surewindow.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2022 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef SUREWINDOW_H
 #define SUREWINDOW_H
 
diff --git a/src/ukui-screensaver-checkpass.cpp b/src/ukui-screensaver-checkpass.cpp
index 6f48647..165259d 100644
--- a/src/ukui-screensaver-checkpass.cpp
+++ b/src/ukui-screensaver-checkpass.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include <stdio.h>
 #include <stdlib.h>
 #include <errno.h>
diff --git a/src/utils.cpp b/src/utils.cpp
index e5b7f50..dc5e9bc 100644
--- a/src/utils.cpp
+++ b/src/utils.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2018 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include "utils.h"
 #include <QSettings>
 
diff --git a/src/utils.h b/src/utils.h
index 4966654..b00b483 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2022 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef UTILS_H
 #define UTILS_H
 
diff --git a/src/verificationwidget.cpp b/src/verificationwidget.cpp
index edbb92f..9acb3e4 100644
--- a/src/verificationwidget.cpp
+++ b/src/verificationwidget.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2020 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include "verificationwidget.h"
 #include <QGridLayout>
 #include <QPainter>
diff --git a/src/verificationwidget.h b/src/verificationwidget.h
index cbc13e7..973017e 100644
--- a/src/verificationwidget.h
+++ b/src/verificationwidget.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2020 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef VERIFICATIONWIDGET_H
 #define VERIFICATIONWIDGET_H
 
diff --git a/src/verticalVerificationwidget.cpp b/src/verticalVerificationwidget.cpp
index 1dd912a..e848a45 100644
--- a/src/verticalVerificationwidget.cpp
+++ b/src/verticalVerificationwidget.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2020 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #include "verticalVerificationwidget.h"
 #include <QGridLayout>
 #include <QPainter>
diff --git a/src/verticalVerificationwidget.h b/src/verticalVerificationwidget.h
index 749dadc..26a94d4 100644
--- a/src/verticalVerificationwidget.h
+++ b/src/verticalVerificationwidget.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2020 Tianjin KYLIN Information Technology Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+**/
 #ifndef VERTICALVERIFICATIONWIDGET_H
 #define VERTICALVERIFICATIONWIDGET_H