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Sumatra PDF vs Foxit PDF Reader: catalog facts
Sumatra PDF	Foxit PDF Reader
Free Completely free and open source with no ads, bundled software or subscription. No account…	Freemium The reader is free. Foxit PDF Editor is a paid product.
Windows, Command line	Windows, macOS, Linux, Android, iOS
Opens PDF, EPUB, MOBI, FictionBook, CBZ/CBR/CBT/CB7, DjVu, XPS, CHM, SVG and many image formats including HEIC and AVIF Lightweight and fast; the portable single .exe build writes nothing to the registry	Fast rendering with a full annotation and form-filling toolset for free Available on Windows, macOS, Linux, Android and iOS
Windows only (Windows 7 through 11; XP and Vista need version 3.1.2); no macOS or Linux version Only unencrypted EPUB and MOBI/AZW ebooks open; DRM-protected files are not supported	Editing page content requires the paid Foxit PDF Editor The installer and interface promote the paid products
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 22, 2026

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