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Atril vs MuPDF: catalog facts
Atril	MuPDF
Free Free and open source under the GPL.	Free Free and open source under the AGPL. Commercial licensing is sold separately.
Linux	Windows, macOS, Linux, Android, iOS, Command line
Opens PDF, PostScript, DjVu, DVI, XPS and comic archives Lightweight with a traditional interface	Extremely fast and small, with accurate rendering The bundled mutool covers most scripted PDF manipulation
Viewing only, with no PDF editing Designed for the MATE desktop on Linux	The viewer interface is deliberately minimal and keyboard-driven Commercial use of the library needs a paid licence from Artifex
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: AGPL-3.0
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 22, 2026

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