Redaktor Čenda WordPress plugin includes:

PDF.js (pdfjs-dist 6.1.200)
Copyright Mozilla Foundation and contributors
License: Apache License 2.0
License text: licenses/pdfjs-dist-LICENSE
Readable worker source: src/pdf.worker.mjs
https://github.com/mozilla/pdf.js/tree/v6.1.200

Mammoth.js (mammoth 1.12.0)
Copyright Michael Williamson
License: BSD 2-Clause License
License text: licenses/mammoth-LICENSE
https://github.com/mwilliamson/mammoth.js

The browser bundle assets/source-files.js is human-readable and includes
module names. Its application entry point is included at src/source-files.js.
For rebuild instructions and upstream source locations see SOURCE.md.
