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PDF Squeezer vs pdfsizeopt: catalog facts
PDF Squeezer	pdfsizeopt
Paid Sold as a paid app; the homepage does not list the price.	Free Free and open source.
Windows, macOS, iOS	Windows, Linux, Command line
Drag-and-drop compression with little setup Available on Mac, iOS and Windows	Lossless size reduction Docker image available
Focused on compression rather than general PDF editing Price not stated on the homepage	Command-line only Updates are infrequent
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-2.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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