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Pressbooks vs Asciidoctor EPUB3: catalog facts
Pressbooks	Asciidoctor EPUB3
Paid Prices are not listed on the homepage; enterprise plans start with a demo request.	Free Free to download and use; the source is published on GitHub.
Web	Command line
Exports books in several formats from one source Supports interactive content such as H5P quizzes and annotations	Converts AsciiDoc straight to EPUB3 Works within the existing Asciidoctor toolchain
Pricing is not published on the homepage Enterprise plans are aimed at institutions and sold through demos	Command-line only, needs a Ruby setup Only useful if your source text is in AsciiDoc
Web application, Hosted service	Downloadable app
Closed source	Open source
License not stated	License not stated
Account needed	No account needed
Needs internet	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.