Software License Agreement

CKEditor 5 – https://github.com/ckeditor/ckeditor5
Copyright (c) 2003-2022, CKSource Frederico Knabben. All rights reserved.

Licensed under the terms of GNU General Public License Version 2 or later.

Sources of Intellectual Property Included in CKEditor

Where not otherwise indicated, all CKEditor content is authored by CKSource engineers and consists of CKSource-owned intellectual property. In some specific instances, CKEditor will incorporate work done by developers outside of CKSource with their express permission.

The following libraries are included in CKEditor under the MIT license:

• Lo-Dash - Copyright (c) JS Foundation and other contributors https://js.foundation/. Based on Underscore.js, copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors http://underscorejs.org/.
• marked - Copyright (c) 2011-2018, Christopher Jeffrey. (MIT License)
• turndown - turndown is copyright © 2017+ Dom Christie and released under the MIT license.
• turndown-plugin-gfm - turndown-plugin-gfm is copyright © 2017+ Dom Christie and released under the MIT license.

Trademarks

CKEditor is a trademark of CKSource Frederico Knabben. All other brand and product names are trademarks, registered trademarks or service marks of their respective holders.