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Antenna House Formatter vs Vivliostyle: catalog facts
Antenna House Formatter	Vivliostyle
Paid Commercial licences with paid maintenance; a trial download is available.	Free Free and open source.
Linux	Web, Command line
Supports both XSL-FO and CSS for Paged Media Long development history with regular releases	Book layout written in standard CSS Browser viewer and command-line PDF export
Paid commercial licence Aimed at automated publishing rather than editing existing PDFs	Requires familiarity with HTML and CSS Vivliostyle Pub is still in alpha
Downloadable app	Downloadable app, Web application
Closed source	Open source
License: Proprietary	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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