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Sejda PDF vs Smallpdf: catalog facts
Sejda PDF	Smallpdf
Freemium A limited free tier is available. Paid plans remove the limits.	Freemium A limited free tier is available. Pro is a paid subscription.
Windows, macOS, Linux, Web	Windows, Android, iOS, Web
Desktop version processes files entirely locally Online files are deleted automatically after a short period	Clean, fast interface that covers the common PDF chores Desktop and mobile apps alongside the browser tools
Free use is limited to a few tasks per hour and small documents Closed source	Free use is capped at a couple of documents per day Files are processed on their servers
Web application, Downloadable app	Web application
Closed source	Closed source
License not stated	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 22, 2026	Official website Full listing and sources Checked September 22, 2026

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