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Quick PDF Join vs Qpdf Tools: catalog facts
Quick PDF Join	Qpdf Tools
Free Free and open source under the GPL-3.0-or-later.	Free Free and released into the public domain under the Unlicense.
Windows, Linux	Linux
Single-purpose tool that is quick to learn Runs on Linux and Windows	Compress, split, merge and rotate PDFs Works locally without uploading files
Only merges PDFs; no splitting, editing or reordering of pages Small project with a single developer	Covers basic tasks only, no editing or annotation Small project with few contributors
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: Unlicense
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.