diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..630c4fe
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,19 @@
+MIT license
+
+Permission is hereby granted, free of charge, to any person obtaining a copy 
+of this software and associated documentation files (the “Software”), to deal
+in the Software without restriction, including without limitation the rights 
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
+copies of the Software, and to permit persons to whom the Software is 
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in 
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/plugin.syntaxhighlighter.php b/plugin.syntaxhighlighter.php
index 6591f29..793d4ea 100644
--- a/plugin.syntaxhighlighter.php
+++ b/plugin.syntaxhighlighter.php
@@ -6,6 +6,26 @@ Plugin URI: https://git.la10cy.net/DeltaLima/flatpress-plugin-syntaxhighlighter-
 Description: <a href="https://git.la10cy.net/DeltaLima/flatpress-plugin-syntaxhighlighter-ng/">SyntaxHighlighter-NG</a> (forked from <a href="https://forum.flatpress.org/viewtopic.php?p=1130&hilit=syntax+highlight#p1135">Arvid's forum post</a>, using now <a href="https://prismjs.com">prism.js</a>)
 Author: 2005 NoWhereMan, 2023 DeltaLima
 Author URI: https://deltalima.org
+License: MIT
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the “Software”), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
 */
 
 
diff --git a/res/syntaxhighlighter-ng.js b/res/syntaxhighlighter-ng.js
index 1fc033a..0e8b43a 100644
--- a/res/syntaxhighlighter-ng.js
+++ b/res/syntaxhighlighter-ng.js
@@ -2,6 +2,27 @@
 // as told mentioned in https://prismjs.com/index.html#basic-usage
 // Author: DeltaLima
 // Date: 21.06.2023
+// License: MIT
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy 
+// of this software and associated documentation files (the “Software”), to deal
+// in the Software without restriction, including without limitation the rights 
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
+// copies of the Software, and to permit persons to whom the Software is 
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in 
+// all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+
 
 function wrap_pre_tags(used_languages) {
   // iterate through all used_languages