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SumatraPDF for Windows

Read PDFs, unencrypted EPUB books and CBZ/CBR comics with SumatraPDF, a free, open-source document reader for Windows.

WindowsFree and open source; (A)GPLv3 with some BSD-licensed codeVersion 3.6.1
Operating system
Windows 7–11
Architecture
x64 (64-bit)
Download package
EXE installer
Download for Windows (64-bit installer)

Selected download: 3.6.1 x64 installer, not portable. Separate x86, ARM64 and portable packages are offered; ARM64 requires Windows 10 or 11.

Link checked · Download guidance

What is SumatraPDF?

SumatraPDF opens PDFs, ebooks and comic archives in one Windows reader. It suits reading downloaded manuals, unencrypted EPUB or MOBI books, and CBZ/CBR comics without switching applications for each format. It also opens DjVu, XPS, CHM and common image files. Tabs let you keep several documents open in the same window.

This download is the 64-bit EXE installer for version 3.6.1 on Windows 7–11. The publisher offers separate 32-bit, ARM64 and portable packages; the linked file is not the portable ZIP. EPUB support is for unencrypted books, so do not choose it to open DRM-protected EPUB purchases. There is no native macOS or Linux edition.

What it offers

  • Read PDF, EPUB and MOBI documents in one application.
  • Open CBZ and CBR comic archives, DjVu, XPS, CHM and common image files.
  • Keep multiple documents open in tabs.
  • Use a separately offered portable package to run without installation.

Good to know

  • EPUB support is for unencrypted books, not DRM-protected EPUB purchases.
  • Windows-only application; there is no native macOS or Linux edition.

Product images

SumatraPDF for Windows displaying a Model 3 PDF manual with document tabs and a bookmarks sidebar.
SumatraPDF for Windows displaying a Model 3 PDF manual with document tabs and a bookmarks sidebar. Image source ↗Screenshot published in the official SumatraPDF website gallery. Application and displayed document/trademarks belong to their respective owners, including Tesla. Separate screenshot and document-image reuse permission has not been established; acquisition is not a license.
Historical SumatraPDF v3.2 64-bit home screen with Frequently Read document thumbnails, from the Softonic Windows gallery.
Historical SumatraPDF v3.2 64-bit home screen with Frequently Read document thumbnails, from the Softonic Windows gallery. Image source ↗Historical screenshot from the Softonic Sumatra PDF for Windows gallery; the UI visibly identifies v3.2, not the linked 3.6.1 release. Softonic footer states all rights reserved. Application and document artwork belong to their respective owners; reuse permission is unconfirmed.

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