Software License Agreement
==========================

**CKEditor&nbsp;5 GitHub Flavored Markdown support** (https://github.com/ckeditor/ckeditor5)<br>
Copyright (c) 2003–2026, [CKSource Holding sp. z o.o.](https://cksource.com) All rights reserved.

Licensed under a dual-license model, this software is available under:

* the [GNU General Public License Version 2 or later](https://www.gnu.org/licenses/gpl.html),
* or commercial license terms from CKSource Holding sp. z o.o.

For more information, see: [https://ckeditor.com/legal/ckeditor-licensing-options](https://ckeditor.com/legal/ckeditor-licensing-options).

Sources of Intellectual Property Included in CKEditor&nbsp;5
------------------------------------------------------------

Where not otherwise indicated, all CKEditor&nbsp;5 content is authored by CKSource engineers and consists of CKSource-owned intellectual property. In some specific instances, CKEditor&nbsp;5 will incorporate work done by developers outside of CKSource with their express permission.

The following libraries are included in CKEditor&nbsp;5 under the [ISC license](https://opensource.org/licenses/ISC):

* hast-util-from-dom - Copyright (c) Keith McKnight <keith@mcknig.ht>.
* rehype-dom-parse - Copyright (c) 2018 Keith McKnight <keith@mcknig.ht>.
* rehype-dom-stringify - Copyright (c) 2018 Keith McKnight <keith@mcknig.ht>.

The following libraries are included in CKEditor&nbsp;5 under the [MIT license](https://opensource.org/licenses/MIT):

* @types/hast - Copyright (c) Microsoft Corporation.
* hast-util-to-html - Copyright (c) Titus Wormer <tituswormer@gmail.com>.
* hast-util-to-mdast - Copyright (c) Titus Wormer <tituswormer@gmail.com> and Copyright (c) Seth Vincent <sethvincent@gmail.com>.
* hastscript - Copyright (c) Titus Wormer <tituswormer@gmail.com>.
* rehype-remark - Copyright (c) Titus Wormer <tituswormer@gmail.com>.
* remark-breaks - Copyright (c) 2017 Titus Wormer <tituswormer@gmail.com>.
* remark-gfm - Copyright (c) Titus Wormer <tituswormer@gmail.com>.
* remark-parse - Copyright (c) 2014 Titus Wormer <tituswormer@gmail.com>.
* remark-rehype - Copyright (c) Titus Wormer <tituswormer@gmail.com>.
* remark-stringify - Copyright (c) 2014 Titus Wormer <tituswormer@gmail.com>.
* unified - Copyright (c) 2015 Titus Wormer <tituswormer@gmail.com>.
* unist-util-visit - Copyright (c) 2015 Titus Wormer <tituswormer@gmail.com>.

Trademarks
----------

**CKEditor** is a trademark of [CKSource Holding sp. z o.o.](https://cksource.com) All other brand and product names are trademarks, registered trademarks or service marks of their respective holders.