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zathura vs Okular: catalog facts
zathura	Okular
Free Free and open source.	Free Free and open source under the GPL.
Linux	Windows, macOS, Linux
Fully usable without a mouse, with vim-like keys Plugin system covers PDF, PostScript and DjVu	One viewer for a very wide range of document and comic formats Annotations are stored separately, so the original file is untouched
No editing or form filling Keyboard-centric design takes some learning	Pulls in KDE libraries on non-KDE desktops It is a viewer and annotator, not a PDF editor
Downloadable app	Downloadable app
Open source	Open source
License: Zlib	License: GPL-2.0
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.