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Skim is a PDF reader and note-taker for OS X. It is designed to help you read and annotate scientific papers in PDF, but is also great for viewing any PDF file.

Skim includes many features and has a great user interface.

What's New

Version 1.4.21:
Bug Fixes
  • Fix Open Selected PDF service broken by the system
  • Improve full screen animation on OS X 10.11
  • Extend freehand and line note drawing workarounds for still buggy macOS 10.12
  • Workaround for find bug on macOS 10.12
  • Workaround for PDF search bug on macOS 10.12


  • OS X 10.6 or later

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4.6 106


Current Version (1.x)


Downloads 315,677
Version Downloads 1,548
License Free
Date 21 Sep 2016
Platform Intel 64 / OS X / Intel 32
Price Free
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