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Sumatra PDF Recorded Package Source

Direct package links and installation notes for Windows

Office & Productivity · v3.6.1 · Free; (A)GPLv3 with some BSD-licensed code

Windows document reader with installer and portable choices

Source record, not a product review. Automated checks can confirm URL availability but not package safety, installation behavior, or offline operation. Catalog maintained by .
License: Free; (A)GPLv3 with some BSD-licensed code
Size: 11 MB
Platforms: Windows

Download summary

Sumatra PDF is a productivity app for Windows, published by Krzysztof Kowalczyk. A direct package URL is recorded below. The host may be the publisher, a release repository, a CDN, or another distribution source documented by the publisher. Some packages still fetch optional components during setup. The recorded publisher site is sumatrapdfreader.org. We do not host or modify installer files.

Sources and identity

External references used to identify the product and publisher. These links do not prove that we installed the package.

Wikipedia article

Publisher documentation

These references support the package and behavior notes. Documentation checks are separate from the recorded URL-check date and do not represent an installation test.

Choose a package

Choose Explorer integration or a portable folder

Use setup when you want the optional Explorer preview or search integration. Use the x64 ZIP for a separately extracted reader; keep SumatraPDF-settings.txt and its thumbnail cache with that folder if you intend to move its preferences.

Installed copies normally keep settings under the user’s local application data. The documented -appdata override changes the location; a ZIP does not establish that Windows or opened documents leave no other records.

Resolve an upgrade lock before retrying

Close the reader and any Explorer preview using its components before retrying a failed replacement. Keep a representative PDF or comic locally to check the selected reading workflow afterward.

The installation documentation also describes newer 3.7 packaging changes. Those later DLL details are not evidence of the contents of this recorded 3.6.1 package.

Package guidance is based on the linked documentation, checked 11 September 2026. No installation test is claimed.

Download options

Recorded package links, store pages, and browser extensions where available.

Scroll the table sideways to compare packages and reach each download link.

Platform Build Architecture Package Action Notes
Windows

EXE

Sumatra PDF installer 64-bit

 64-bit EXE Download file Official Sumatra PDF installer
Windows

EXE

Sumatra PDF installer 32-bit

 32-bit EXE Download file Official Sumatra PDF installer
Windows

Portable

Sumatra PDF portable ZIP 64-bit

 64-bit ZIP Download file Official portable package

Verification scope

A direct package URL is recorded above. We have not independently installed every listed build or confirmed that setup remains fully offline.

We do not host software files. Links may resolve to a publisher domain, its release repository, app store, CDN, or a documented distribution host — confirm the final hostname, publisher signature, version, and architecture before deployment. Recorded URLs last checked 11 September 2026; content last updated 11 September 2026.

What Sumatra PDF does

Sumatra PDF 3.6.1 is an open-source Windows document reader with x64 and x86 installers plus an x64 portable ZIP. Its supported reading formats include PDF, ePub, MOBI, XPS, DjVu, CHM, CBZ, and CBR, but rendering depends on document features and this is not a full PDF editor. The project emphasizes a compact interface; this page makes no comparative speed, memory, or older-hardware claim.

The publisher documents that a portable copy stores SumatraPDF-settings.txt and its thumbnail cache beside the executable, while an installed copy normally uses the user's local application-data directory; the -appdata option can override the location. Portable therefore means an extracted deployment mode, not “no traces”: Windows recent items, crash data, temporary files, antivirus logs, and opened documents can still leave data elsewhere.

SyncTeX use requires a compatible editor/viewer workflow, and CHM or other active-content formats deserve the same untrusted-document precautions as any external file. Update checks and external links can use the network even though reading a local file does not require an account.

The project pages checked for this review did not expose a publisher checksum for these 3.6.1 packages. No installation, settings-trace capture, rendering comparison, signature inspection, or performance benchmark was performed.

Try a practical task

Find and revisit a page in a long PDF

Use a public text-based manual to practise search and page navigation before depending on a large document during travel.

Before you start

  • Use SumatraPDF on Windows and a PDF you are allowed to read.
  • Choose a text-based document for this first search test.

  1. Open the local document

    Open the saved PDF and note its page count. Make sure it is the actual document rather than a website shortcut.

  2. Search for a term

    Use Ctrl+F and search for a distinctive word from the manual. Move through the matches and read the surrounding paragraph.

  3. Jump to a page

    Use the page-navigation field or Go To Page action to return to a known page number. Distinguish PDF page position from a printed page label.

  4. Reopen the file

    Close and reopen the local PDF. Check the reader’s restore-position behaviour rather than assuming it will always reopen at the same place.

Expected result

You can find a known text match and return to its page using the local document.

If the result is different

Search finds no word visible on the page
The page may be a scanned image or use unusual text encoding; a reader search is not OCR.
A page number seems wrong
Printed page labels and document positions can differ because of covers and front matter.

A readable PDF is not necessarily editable, accessible or searchable. SumatraPDF is a reader, not a complete PDF editing workflow.

Continue with the publisher’s instructions

Guide updated . Steps describe the linked documentation and our sample task. Only demonstrations with a stated environment record an observed run; this is not an installation test of every Sumatra PDF package listed above.

Product features

  • Compact document reader; no comparative performance benchmark is claimed
  • Reads PDF, ePub, MOBI, XPS, DjVu, CHM, and comics
  • Clean, minimal interface with keyboard navigation
  • Portable option stores settings and thumbnail cache beside the executable by default
  • Open source for Windows

Installation notes

Grouped by the package types recorded on this page — not a claim that every listed build was independently tested on every supported platform.

Windows Windows archive (ZIP/7Z)

  1. 1

    Extract the recorded file (SumatraPDF-3.6.1-64.zip) into a separate folder and check the publisher's instructions for the executable or setup program inside. ZIP/7Z describes compression, not installation behavior.

  2. 2

    A no-installer build may still store settings, credentials, caches, or Registry entries outside that folder. Check Sumatra PDF's configuration and removal instructions before moving or deleting it.

Windows Windows installer (EXE)

  1. 1

    Download the recorded file (SumatraPDF-3.6.1-64-install.exe). If it has a digital signature, inspect the signer and validation result in Properties → Digital Signatures. If no signature is present, follow the publisher's documented verification method; a missing signature does not authenticate the file.

  2. 2

    Check any Windows warning before proceeding. A SmartScreen reputation warning is not signature verification; stop if the publisher is unexpected or the file is reported as malicious.

  3. 3

    Follow the publisher's setup prompts to finish; options vary by release, so review each screen rather than clicking through.

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