SumatraPDF v3.3.3 Updated

Special on 21 Jul 2021
  • 12MB (uncompressed)
  • Released on 20 Jul 2021
  • Suggested by Darkbee

SumatraPDF is a lightweight, tabbed document reader for a variety of formats. Includes a wide variety of views including table of contents, rotation, facing pages, book view (2 pages side-by-side), full screen and presentation mode. Includes support for bookmarks, command-line arguments, hotkeys, and more. Additionally, SumatraPDF can function as a portable browser plugin. Supported formats include PDF, eBooks (EPUB, MOBI, FB2/FB2Z, PDB, TCR), Comic Books (CBZ/CBR/CBT/CB7Z), DJVU, CHM, XPS, TXT, images (JPG, PNG, GIF, TIFF, J2K, WEBP, TGA) and PostScript documents (PS/EPS, AI, PRN - requires Ghostscript).

Alternatively, Sumatra Portable adjusts recently used and most used file paths.

Runs on:Vista / Win7 / Win8 / Win10
Writes settings to: Application folder
Stealth: ? Yes
Unicode support: Yes
License: GNU GPLv3
How to extract: Download the "Portable version" ZIP package and extract to a folder of your choice. Launch SumatraPDF.exe.
Similar/alternative apps: STDU Viewer
What's new? See link for Changelog:

56 comments on SumatraPDF  The Portable Freeware Collection Latest Entries Feed

KJO 2020-03-15 20:45

Version 3.2 (2020) no longer supports XP (last XP version is 3.1.2)


Midas 2015-12-24 15:59

@ripu: you shouldn't be so hard on yourself, mistakes happen. :)


ripu 2015-12-24 06:46

Ignore my previous comment. I am an idiot. It actually uses an old version of Sumatra, which was faster and lighter.


ripu 2015-12-24 06:31

I was using sumatra for a long time. Recently I had to open a high graphics magagine PDF. And it was very slow, slower than foxit and pdfxchange. Then I tried all the pdf viewers in this site.

After testing I found that, Universal Viewer is the fastest PDF viewer, especially for high graphics magagine kind of PDFs. I have a lower mid range laptop. Universal viewer throws sumatra, pdfxcange, foxit out of water when it comes to speed of loading one after another high graphics page. And it's the lightest of all the PDF viewers, uses minimal CPU unlike others I have mentioned.


Emka 2015-11-03 07:24

Any ideas if the portable browser plugin still works with v3.x? When I follow SYSTEM's extraction instructions above, I don't get npPdfViewer.dll but two other dlls, PdfFilter and PdfPreview. Without nPdfViewer the plugin does not work, with it opera:plugins (good ole Opera 12) says the plugin is still at v2.5.2, the version of said dll.


ihateyou 2013-11-15 02:35

SumatraPDF would be great if it didn't support DRM. It prevents you from copying or printing PDFs that are "protected", and the author refuses to make it optional. Hypocritical for Free Software to support DRM if you ask me.


SYSTEM 2013-05-25 15:59

Actually, the installer of Sumatra PDF 2.3 can be extracted by running it with the /x command line switch. :) Extracting the installer requires admin rights, though.

So, updated instructions to extract the browser plugin:

Download the installer. Extract it by running it with the /x command line switch.

Exit the web browser and copy the files libmupdf.dll, npPdfViewer.dll, SumatraPDF.exe and optionally DroidSansFallback.ttf to the plugin directory of the browser.

Finally, restart the browser. The plugin is ready for use.


SYSTEM 2013-05-25 13:29

@Emka: Confirmed. I'm afraid install-copy-uninstall is the only way to extract the plugin from now on. :(


Mike.S.G. 2013-05-24 12:02

v2.3.1 released -

This version will once again run on older (non-SSE2) CPUs. Checkout the advanced settings: Settings - Advanced Options. The link for help with the settings is found at the top of the text file.


Midas 2013-05-23 08:47

For bleeding edge x64 builds, check Dirk Paehl's Open Source page -- where, along with a truckload of other PDF, Internet and video utils, you can currently find a v2.4 SVN Revision 8141 (compiled 19-may-2013):


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