diff --git a/common/Drawings/Format/ChartEx.js b/common/Drawings/Format/ChartEx.js
index ebc0fa7e0e..bfa19dcada 100644
--- a/common/Drawings/Format/ChartEx.js
+++ b/common/Drawings/Format/ChartEx.js
@@ -1,3 +1,35 @@
+/*
+ * (c) Copyright Ascensio System SIA 2010-2023
+ *
+ * This program is a free software product. You can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License (AGPL)
+ * version 3 as published by the Free Software Foundation. In accordance with
+ * Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
+ * that Ascensio System SIA expressly excludes the warranty of non-infringement
+ * of any third-party rights.
+ *
+ * This program is distributed WITHOUT ANY WARRANTY; without even the implied
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE. For
+ * details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
+ *
+ * You can contact Ascensio System SIA at 20A-6 Ernesta Birznieka-Upish
+ * street, Riga, Latvia, EU, LV-1050.
+ *
+ * The  interactive user interfaces in modified source and object code versions
+ * of the Program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU AGPL version 3.
+ *
+ * Pursuant to Section 7(b) of the License you must retain the original Product
+ * logo when distributing the program. Pursuant to Section 7(e) we decline to
+ * grant you any rights under trademark law for use of our trademarks.
+ *
+ * All the Product's GUI elements, including illustrations and icon sets, as
+ * well as technical writing content are licensed under the terms of the
+ * Creative Commons Attribution-ShareAlike 4.0 International. See the License
+ * terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
+ *
+ */
+
 "use strict";
 
 (/**
@@ -3939,4 +3971,4 @@
     // window['AscFormat'].CLabelLayout = CLabelLayout;
     // window['AscFormat'].CRegionLabelLayout = CRegionLabelLayout;
     // window['AscFormat'].CDoubleOrAutomatic = CDoubleOrAutomatic;
-})(window);
\ No newline at end of file
+})(window);