Redaktor Čenda WordPress plugin includes:

PDF.js
Copyright Mozilla Foundation and contributors
License: Apache License 2.0
https://github.com/mozilla/pdf.js

Mammoth.js
Copyright Michael Williamson
License: BSD 2-Clause License
https://github.com/mwilliamson/mammoth.js

The unmodified license texts and source packages are available from the linked
upstream projects. The generated browser bundle is built from the versions
declared in the Redaktor Čenda application package-lock.json.

