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Quick PDF Join vs PDF Mix Tool: catalog facts
Quick PDF Join	PDF Mix Tool
Free Free and open source under the GPL-3.0-or-later.	Free Free and open source under the GPLv3.
Windows, Linux	Linux
Single-purpose tool that is quick to learn Runs on Linux and Windows	Merge, split, rotate, N-up and booklet creation in one app Few dependencies (Qt and qpdf)
Only merges PDFs; no splitting, editing or reordering of pages Small project with a single developer	Page-level operations only, no content editing Linux focused
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0
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.