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JPEG2PDF vs IceBox: catalog facts
JPEG2PDF	IceBox
Free Free and open source under the GPL-3.0-or-later licence, with an optional donation page.	Free Free and open source under the GPL-3.0 licence.
Linux	Linux
Converts images to PDF locally Light and dark themes	Single purpose: images in, one PDF out Available as a Flatpak
Small project with little recent activity Linux only	Does not edit or merge existing PDFs Small project with limited development history
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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