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DjVuLibre vs Papers: catalog facts
DjVuLibre	Papers
Free Free and open source under the GPL.	Free Free GNOME app, supported by donations to the GNOME Foundation.
Linux, Command line	Linux
Command-line encoders, decoders and utilities for DjVu files Standalone viewer included	Annotation and highlighting of PDFs Opens DjVu, TIFF and comic book archives
Targets Unix with X11; no native Windows or macOS builds from the project Modern viewer DjView4 is a separate package	Linux only No full PDF text editing
Downloadable app	Downloadable app
Open source	Open source
License: GPL	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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