SumatraPDF

by Krzysztof Kowalczyk · Office, PDF & email

Open sourceWindows

Tiny, fast PDF, ePub and comic reader for Windows.

Official download from sumatrapdfreader.org (opens in a new tab)

Opens sumatrapdfreader.org, Krzysztof Kowalczyk's own site. No mirror, no bundle.

Overview

What is SumatraPDF?

SumatraPDF opens PDF, ePub, MOBI, CBZ and XPS files almost instantly. It is a reader only, with no editing, which keeps it small and quick.

Key features

  • PDF, ePub, MOBI and comic formats
  • Opens very fast
  • Portable version
  • Keyboard shortcuts

Best for

  • Reading PDFs on slow PCs
  • eBooks on Windows
  • A light default PDF reader

Included in starter kits

Install

How to install SumatraPDF

  1. 1Open the official SumatraPDF download page on sumatrapdfreader.org.
  2. 2Pick the build for your system (Windows; check x64, ARM or Apple silicon where offered).
  3. 3Run the installer and read each screen; decline anything you did not ask for.
  4. 4Keep it updated from the app's own updater or your package manager.

Install from the command line

  • Windows · winget

    winget install --id SumatraPDF.SumatraPDF -e --source winget

Package IDs checked against the public winget, Homebrew and Flathub repositories on 1 Nov 2026. Build a script for several apps.

Safety

Download SumatraPDF safely

  • Check the domain

    The real download lives on sumatrapdfreader.org. Look-alike domains and search ads are the most common trap.

  • Skip mirrors

    Download portals can wrap installers in adware or old versions. You never need them for this app.

  • Verify if you can

    If the publisher lists a checksum, compare it with our in-browser checker before running the file.

  • Watch the installer

    Untick extras, browser changes or trials you did not ask for.

Open the checksum checker

Alternatives

SumatraPDF alternatives

Other office, pdf & email apps, closest platform match first.

All office

FAQ

SumatraPDF questions

Where can I download SumatraPDF safely?

Download SumatraPDF only from Krzysztof Kowalczyk's official site at sumatrapdfreader.org. Avoid mirror and "download portal" sites, which can bundle extra software with the installer.

Is SumatraPDF free?

Yes. SumatraPDF is open-source software and free to use.

Does SumatraPDF work on Windows?

SumatraPDF is available for Windows. Check Krzysztof Kowalczyk's download page for exact system requirements and whether your processor (x64, ARM or Apple silicon) is supported.

Can I install SumatraPDF from the command line?

Yes, with winget on Windows (winget install --id SumatraPDF.SumatraPDF -e). Package managers fetch the publisher's files and make updates easy.

What are good alternatives to SumatraPDF?

See the alternatives section on this page and the full office, pdf & email list on AltFTool, which shows each app's licence and platforms side by side.