Browse free open source PDF software and projects for Mac below. Use the toggles on the left to filter open source PDF software by OS, license, language, programming language, and project status.

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    Gemini 3 and 200+ AI Models on One Platform

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    Skim

    Skim

    A PDF Reader and Note-taker for OS X

    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 requires OS X 10.10 or higher.
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    Downloads: 5,103 This Week
    Last Update:
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