It is a supporting package within the udoc ecosystem, not a standalone document viewer or editor. If you're embedding documents in an application, start with udoc-viewer or udoc-editor instead.
The source is maintained in the docMentis udoc monorepo. See that repository for development instructions.
Licensing
This package's source code is available under MIT OR Apache-2.0. It depends on the separately licensed, proprietary @docmentis/udoc-wasm runtime.
Its dist also bundles Video.js and the libraries it plays streams and video sites with, each under its own license — Apache-2.0, MIT or BSD-3-Clause — listed with their license texts in dist/THIRD-PARTY-NOTICES.md.