Skip to content
Ocean of Softwares
Menu

Sumatra PDF

Free, small Windows reader for PDF, ebook and comic files, with a portable version.

Try Sumatra PDF (opens the Sumatra PDF website in a new tab)

Our verdict

Sumatra PDF is for Windows users who want a fast, light reader for PDFs, ebooks and comics. Skip it if you need to edit, sign or redact PDFs, or if you use macOS or Linux.

What it does well

  • Free, with no ads, bundled software or subscription
  • Opens PDF, EPUB, MOBI, CBZ/CBR, DjVu, XPS, CHM and image files
  • Portable version runs without installation, including from a USB drive

Where it falls short

  • Windows only; no Mac or Linux version
  • Described as a reader, not an editor, so it does not edit PDFs
  • Official page lists Windows 7, 8, 10 and 11 only
The Sumatra PDF website
The official Sumatra PDF website, 17 October 2026.

Sumatra PDF calls itself a free PDF, eBook and comic reader for Windows, with the line 'Free, fast, small.' It opens PDF, EPUB, MOBI, CBZ and CBR comics, DjVu, XPS, CHM and common image files.

It costs nothing, and the site states there are no ads, bundled software or subscription. Builds are offered for 32-bit, 64-bit and ARM64 Windows, from Windows 7 to Windows 11, and a portable version needs no installation.

The source is on GitHub. The repository's COPYING file is the GNU GPL version 3, and the README says the project is under (A)GPLv3, with some code under a BSD licence.

What users say

Write a review

No user reviews yet. If you’ve used Sumatra PDF, share what you used it for and how it went.

Last updated 17 October 2026. Facts checked against the official site on 16 October 2026. How we make money