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Scrolex vs Papers: catalog facts
Scrolex	Papers
Free Free and open source under the AGPL version 3 or later.	Free Free GNOME app, supported by donations to the GNOME Foundation.
Linux	Linux
Horizontal page layout suited to wide screens Optimized for HiDPI displays	Annotation and highlighting of PDFs Opens DjVu, TIFF and comic book archives
Viewer only, with no editing or annotation tools mentioned Small single-developer project	Linux only No full PDF text editing
Downloadable app	Downloadable app
Open source	Open source
License: AGPL-3.0-or-later	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

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