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pdfjam vs qpdf: catalog facts
pdfjam	qpdf
Free Free and open source under the GPL 2 license.	Free Free and open source under the Apache licence.
Command line	Windows, macOS, Linux, Command line
N-up layouts, booklets and signatures for binding Accepts PDF, PostScript and image inputs	Rewrites PDF structure losslessly, which makes it ideal in pipelines Can dump and rebuild a PDF as JSON for scripted editing
Requires a LaTeX installation Command line only, no graphical interface	No rendering or text extraction; those need other tools Command line only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: Apache-2.0
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 22, 2026

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