Open Source Apps tagged with 'PDF Reader'

All apps in Open Source Apps tagged with 'PDF Reader' category. Use the filters below to narrow down your search. 
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  1. Okular icon
     490 likes

    Multi-platform document viewer supporting PDF, comics, EPUB, images, and Markdown with annotation tools, sidebar navigation, and text-to-speech features.

    Cost / License

    Application types

    Platforms

    • Windows
    • Linux
    • BSD
    • KDE Plasma
    • Snapcraft
    • Linux Mobile
    • Flathub
    • Haiku
    Okular screenshot 1
    Okular screenshot 1
    Okular screenshot 2
    +2
    Okular screenshot 3
    120 alternatives
    4.3
    Very Good46 reviews
  2. Xournal++ icon
     194 likes

    Handwritten notes and PDF annotation app with pen input, shape drawing, customizable toolbar, image insertion, audio recording, and multi-platform support.

    Cost / License

    Platforms

    • Mac
    • Windows
    • Linux
    Xournal++ screenshot 1
    Xournal++ screenshot 1
    Xournal++ screenshot 2
    +1
    Xournal++ screenshot 3
    62 alternatives
    4.9
    Excellent31 reviews
  3. Evince icon
     462 likes

    Evince (or GNOME Document Viewer) is a document viewer for multiple document formats: PDF, Postscript, djvu, tiff, dvi, XPS, SyncTex support with gedit, comics books (cbr,cbz,cb7 and cbt) and others. See Supported Document Formats for details.

    Cost / License

    Application types

    Platforms

    • Linux
    • PortableApps.com
    • Flathub
    • GNOME
    Evince screenshot 1
    Evince screenshot 1
    Evince screenshot 2
    +3
    Evince screenshot 3
    123 alternatives
    4.3
    Very Good15 reviews
  4. MuPDF icon
     164 likes

    Highly versatile PDF and XPS solution offering customizable rendering and viewing with features like digital signatures, redactions, and annotations.

    Cost / License

    Application types

    Platforms

    • Windows
    • Linux
    • Android
    • F-Droid
    • Xfce
    MuPDF screenshot 1
    MuPDF screenshot 1
    iPad (1)
    +3
    iPad (2)
    95 alternatives
    4.2
    Very Good12 reviews
  5. Readest icon
     36 likes

    Readest is a modern, feature-rich ebook reader designed for avid readers offering seamless cross-platform access, powerful tools, and an intuitive interface to elevate your reading experience.

    Cost / License

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • iPad
    • Flathub
    • Flatpak
    • Android Tablet
    Annotation
    Translation
    Wikipedia
    +2
    Dark Mode
    17 alternatives
    4.9
    Excellent8 reviews
  6. KOReader icon
     78 likes

    An ebook reader application supporting PDF, DjVu, EPUB, FB2 and many more formats, running on Kindle, Kobo, PocketBook, Linux and Android devices.

    Cost / License

    Application types

    Platforms

    • Linux
    • Android
    • AppImageHub
    • Kobo Books
    • Flathub
    • F-Droid
    • Kindle Fire
    • Android Tablet
    KOReader screenshot 1
    KOReader screenshot 1
    KOReader screenshot 2
    77 alternatives
  7. Librera Reader icon
     79 likes

    Librera Reader is a highly customizable and feature-rich application for reading books in PDF, EPUB, MOBI, DjVu, FB2, TXT, RTF, AZW, AZW3, HTML, CBZ, CBR formats on Android devices.

    Cost / License

    • Freemium
    • Open Source

    Application types

    Platforms

    • Android
    • Android Tablet
    • F-Droid
    Librera Reader screenshot 1
    Librera Reader screenshot 1
    Librera Reader screenshot 2
    +7
    Librera Reader screenshot 3
    71 alternatives
    4.9
    Excellent18 reviews
  8. QuickLook icon
     83 likes

    The Quick Look feature from Mac OS X, which allows users to preview file contents quickly by pressing the Space key, is missed. Windows doesn't have this feature. While alternatives like WinQuickLook and Seer exist, the decision was made to create a new version because the...

    Cost / License

    Application type

    Platforms

    • Windows
    Preview of a shapefile (.shp) using the shapefile viewer plugin https://github.com/birderyu/QuickLook.Plugin.ShapefileViewer
    Preview of a PDF file
    Preview of a .docx file using the office plugin at https://github.com/QL-Win/QuickLook.Plugin.OfficeViewer
    +16
    Preview of an excel .xlsx file using the office plugin at https://github.com/QL-Win/QuickLook.Plugin.OfficeViewer
    20 alternatives
    5.0
    Excellent11 reviews
  9. Qiqqa icon
     424 likes

    Qiqqa is a free research and reference manager. Search for, read and annotate your PDFs. Then review your work, write up and create bibliographies instantly.

    Cost / License

    • Freemium
    • Open Source

    Application type

    Platforms

    • Windows
    Qiqqa screenshot 1
    Qiqqa screenshot 1
    Qiqqa screenshot 2
    +2
    Qiqqa screenshot 3
    68 alternatives
    4.5
    Excellent30 reviews
  10. EmbedPDF icon
     13 likes

    EmbedPDF is a framework-agnostic, MIT-licensed PDF viewer that drops into any JavaScript project. Whether you build with React, Vue, Svelte, Preact, or vanilla JS, EmbedPDF delivers a smooth, modern reading experience and a clean developer API.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Self-Hosted
    • React
    • JavaScript
    • Typescript
    • Vue.js
    EmbedPDF screenshot 1
  11. Sioyek icon
     24 likes

    Sioyek is a PDF viewer with minimal interface optimized for reading research papers and technical books.

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    Main view
    You can search in the table of contents
    Portals show relevant figures to the current location in a separate window
    +2
    Middle clicking on the name of a figure takes you to the figure, event if the PDF doesn't have links
    41 alternatives
  12. Kavita icon
     28 likes

    Lightning fast with a slick design, Kavita is a rocket-fueled self-hosted digital library which supports a vast array of file formats. Install to start reading and share your server with your friends. book reader, self hosted, manga, comics, free, manhwa, e readers, electronic...

    Cost / License

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Self-Hosted
    • Cloudron
    Kavita screenshot 1
    Kavita screenshot 1
    Kavita screenshot 2
    +4
    Kavita screenshot 3
    177 alternatives
  13. Episteme Reader is an offline-first application designed for reading various document formats. It leverages native Android technologies and C++ libraries to provide a performant reading experience with customization capabilities.

    Cost / License

    Application types

    Platforms

    • Android
    • Android Tablet
    Episteme Reader screenshot 1
    Episteme Reader screenshot 1
    Episteme Reader screenshot 2
    +1
    Episteme Reader screenshot 3
    53 alternatives
  14. Skim icon
     93 likes

    PDF viewer and annotation tool for macOS supports scientific paper reading, note-taking, highlighting, bookmarks, multiple annotation types, and AppleScript.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    The PDF Window
    93 alternatives
  15. Chaka icon
     4 likes

    Read fluently and comfortably, with simple and clear interface.

    Supported Document Types: PDF, EPUB, MOBI, CBZ, FB2, XPS, TXT, HTML, OFFICE(DOCX, XLSX, PPTX) and ZIP/GZIP

    Features: Horizontal / Vertical Flip Continuous Scroll Lock Stray: Keep scroll straight Margin Crop Focus M.

    Cost / License

    Application types

    Platforms

    • Android
    Chaka screenshot 1
    Chaka screenshot 1
    Chaka screenshot 2
    +1
    Chaka screenshot 3
    52 alternatives
  16. Atril icon
     15 likes

    Atril is a simple multi-page document viewer. It can display and print PostScript (PS), Encapsulated PostScript (EPS), DJVU, DVI, XPS and Portable Document Format (PDF) files. When supported by the document, it also allows searching for text, copying text to the clipboard...

    Cost / License

    • Free
    • Open Source

    Platforms

    • Linux
    • BSD
    112 alternatives