Compare software

Foxit PDF Reader vs Skim: catalog facts
Foxit PDF Reader	Skim
Freemium The reader is free. Foxit PDF Editor is a paid product.	Free Free and open source under the BSD licence.
Windows, macOS, Linux, Android, iOS	macOS
Fast rendering with a full annotation and form-filling toolset for free Available on Windows, macOS, Linux, Android and iOS	SyncTeX integration makes it the standard viewer for LaTeX work Annotation and snapshot tools designed for reading academic papers
Editing page content requires the paid Foxit PDF Editor The installer and interface promote the paid products	macOS only Notes are stored in Skim's own format unless explicitly embedded
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: BSD-3-Clause
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.