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MuPDF vs qpdfview: catalog facts
MuPDF	qpdfview
Free Free and open source under the AGPL. Commercial licensing is sold separately.	Free Free and open source under the GPL 2.0.
Windows, macOS, Linux, Android, iOS, Command line	Linux
Extremely fast and small, with accurate rendering The bundled mutool covers most scripted PDF manipulation	Tabs for keeping several documents open SyncTeX support for LaTeX workflows
The viewer interface is deliberately minimal and keyboard-driven Commercial use of the library needs a paid licence from Artifex	Annotation and form support are rudimentary Slow release cadence
Downloadable app	Downloadable app
Open source	Open source
License: AGPL-3.0	License: GPL-2.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 24, 2026

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