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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 1.4.29:
  • Ensure anchored notes are really removed on 10.12.4
  • Correct pinch zoom in snapshots and split PDF
  • Fix a crasher when adding or removing a note
  • Improve thread safety
  • Don't scroll after PDF synchronisation when line is visible


  • OS X 10.6 or later

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4.6 108


Current Version (1.x)


Downloads 329,886
Version Downloads 2,751
License Free
Date 28 Apr 2017
Platform Intel 64 / OS X / Intel 32
Price Free