Skim

Plans and prices

Every plan, in full

On the record

Annotation tools

Yesskim-app.sourceforge.io · read 24 Sep 2026

Automation

Skim supports AppleScript access to its windows, documents, pages, notes, and highlights.sourceforge.net · read 8 Oct 2026

Export

Skim can export notes as text and provides options to export notes in Skim, PDF bundle, or FDF formats.skim-app.sourceforge.io · read 8 Oct 2026

Integrations

Skim lists interaction with LaTeX, SyncTeX, and PDFSync, as well as integration with BibDesk and other third-party applications.skim-app.sourceforge.io · read 8 Oct 2026

License and project

The project wiki describes Skim as free and open-source and says it is developed by volunteer contributors.sourceforge.net · read 8 Oct 2026

Navigation

Features include table-of-contents and thumbnail navigation, visual history, a reading bar, magnification, and smart cropping.skim-app.sourceforge.io · read 8 Oct 2026

Notes storage

Skim stores its notes and highlights in extended attributes, so they are not stored in the PDF data itself.sourceforge.net · read 8 Oct 2026

Older versions

The project wiki lists older Skim releases for macOS versions from 10.4 through 10.12.sourceforge.net · read 8 Oct 2026

Password handling

Skim lists saving passwords in Keychain as a feature.skim-app.sourceforge.io · read 8 Oct 2026

PDF tools

Users can search PDFs, add notes, highlight sections, bookmark documents, and take snapshots for reference.skim-app.sourceforge.io · read 8 Oct 2026

Platform support

desktopskim-app.sourceforge.io · read 24 Sep 2026

Portability limit

Emailing a PDF loses its extended attributes and therefore its Skim notes unless the file is sent using a method that preserves them.sourceforge.net · read 8 Oct 2026

Presentations

Skim supports full-screen reading and full-screen PDF presentations with built-in transitions.skim-app.sourceforge.io · read 8 Oct 2026

Supported system

The current release requires macOS 10.13 or higher.skim-app.sourceforge.io · read 8 Oct 2026

What it does

Skim is a PDF reader and note-taker designed for reading and annotating scientific papers, and can also view other PDF files.skim-app.sourceforge.io · read 8 Oct 2026

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K KioskAndroidiPhone & iPad+6 KP KDAN PDFAndroidiPhone & iPad+2 M MuPDFAndroidiPhone & iPad+5 FP Foxit PDF ReaderAndroidiPhone & iPad+3 SR StarForce ReaderAndroidiPhone & iPad+3 H HighlightsiPhone & iPadMac JP Javelin PDF ReaderAndroidiPhone & iPad+2 KP Komodo PDFWindowsMac+1

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