84,488,480 programs installed

Should I remove SumatraPDF?

What percent of users and experts removed it?
7% remove it93% keep it
Overall Sentiment
Very good
What do people think about it?
Be the first to rate (click star to rate)
How common is it?
Global Rank #18,844
United States Rank #22,479
Reach 0.0125%
Lifespan of installation (until removal)
< 56.91 days
226.18 days >
Average installed length: 118.84 days


2.3.2 100.00%

Other programs by Krzysztof Kowalczyk

SumatraPDF 2.3.2

Remove SumatraPDF 2.3.2
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SumatraPDF 2.3.2 is a software program developed by Krzysztof Kowalczyk. The software is designed to connect to the Internet and adds a Windows Firewall exception in order to do so without being interfered with. The primary executable is named sumatrapdf.exe. The setup package generally installs about 14 files and is usually about 9.31 MB (9,759,448 bytes). Relative to the overall usage of users who have this installed on their PCs, most are running Windows XP and Windows XP. While about 34% of users of SumatraPDF come from the United States, it is also popular in Germany and Canada.

Program detailsProgram details

URL: blog.kowalczyk.info/software/sumatrapdf
Installation folder: C:\Program Files\SumatraPDF
Uninstaller: C:\Program Files\SumatraPDF\uninstall.exe
Estimated size: 9.31 MB

Program filesFiles installed by SumatraPDF 2.3.2

Program executable:sumatrapdf.exe
Path:C:\Program Files\sumatrapdf\sumatrapdf.exe
Additional files:
  • uninstall.exe - SumatraPDF Installer
  • libmupdf.dll (by Artifex Software) - SumatraPDF (MuPDF Rendering Library)
  • npPdfViewer.dll (by Simon Bünzli) - SumatraPDF Browser Plugin
  • nppl3260.dll (by RealNetworks) - RealPlayer(tm) G2 LiveConnect-Enabled Plug-In (32-bit) (RealPlayer(tm) LiveConnect-Enabled Plug-In)
  • npqtplugin.dll (by Apple) - QuickTime Plug-in 7.6.9 (The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the <A HREF=http://www.apple.com/quicktime/>QuickTime</A> Web site.)
  • npqtplugin2.dll (by Apple)
  • npqtplugin3.dll
  • npqtplugin4.dll
  • npqtplugin5.dll
  • npqtplugin6.dll
  • nprpjplug.dll (by RealNetworks) - RealPlayer Version Plugin (
  • PdfFilter.dll (by Simon Bünzli) - SumatraPDF IFilter Persistent Handler (SumatraPDF IFilter Search Helper)
  • PdfPreview.dll - SumatraPDF Preview Persistent Handler (SumatraPDF Preview Shell Extension)

Program behaviorsBehaviors exhibited

9 Google Chrome Plugins
  • npqtplugin6.dll is loaded in the Google Chrome web browser as 'npqtplugin6.dll'.
  • npqtplugin5.dll is loaded in the Google Chrome web browser as 'npqtplugin5.dll'.
  • npqtplugin4.dll is loaded in the Google Chrome web browser as 'npqtplugin4.dll'.
  • npqtplugin3.dll is loaded in the Google Chrome web browser as 'npqtplugin3.dll'.
  • nppl3260.dll is loaded in the Google Chrome web browser as 'nppl3260.dll'.
  • npqtplugin2.dll is loaded in the Google Chrome web browser as 'npqtplugin2.dll'.
  • Plus 3 more
3 Mozilla Plugins
  • nppl3260.dll is loaded into Mozilla Firefox under the product name '@real.com/nppl3260;version=' with a plugin key of '@real.com/nppl3260;version=' for all users of the PC.
  • nprpjplug.dll is loaded into Mozilla Firefox under the product name '@real.com/nprpjplug;version=' with a plugin key of '@real.com/nprpjplug;version=' for all users of the PC.
  • npPdfViewer.dll is loaded into Mozilla Firefox under the product name 'SumatraPDF Browser Plugin' with a plugin key of '@mozilla.zeniko.ch/SumatraPDF_Browser_Plugin' for all users of the PC.
Windows Firewall Allowed Program
  • SumatraPDF.exe is added as a firewall exception for 'C:\Program Files\SumatraPDF\SumatraPDF.exe'.

How do I remove SumatraPDF?

Quickly and completely remove SumatraPDF 2.3.2 from your computer by downloading Reason's ‘Should I Remove It?’ (click the button below).
Or, you can uninstall SumatraPDF from your computer by using the Add/Remove Program feature in the Window's Control Panel.
  1. On the Start menu (for Windows 8, right-click the screen's bottom-left corner), click Control Panel, and then, under Programs, do one of the following:
    • Windows Vista/7/8: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program SumatraPDF 2.3.2, click it, and then do one of the following:
    • Windows Vista/7/8: Click Uninstall.
    • Windows XP: Click the Remove or Change/Remove tab (to the right of the program).
  3. Follow the prompts. A progress bar shows you how long it will take to remove SumatraPDF.

How do I reset my web browser?

If your web browser homepage and search settings have been modfied by SumatraPDF 2.3.2 you can restore them to their previous default settings.
Microsoft Internet Explorer
Mozilla Firefox
Google Chrome

Win XP 93%
Win Server 2003 1%
Plugs into Mozilla Firefox
Uninstall it 7%
Keep it 93%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows XP 96.28%
Windows 7 2.48%
Windows Server 2003 1.24%
Which OS releases does it run on?
Microsoft Windows XP 97.49%
Windows 7 Professional 1.26%
Windows 7 Home Premium 0.84%
Windows 7 Ultimate 0.42%

Distribution by countryGeography

34.32% of installs come from the United States
Which countries install it?
  United States 34.32%
  Germany 5.51%
  Canada 3.81%
  United Kingdom 3.81%
  India 3.39%
  Brazil 2.97%
  France 2.54%
  Netherlands 2.54%
  MA 2.12%
  Indonesia 2.12%
  Japan 2.12%
  Italy 2.12%
  Russia 1.69%
  Israel 1.69%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Dell 23.31%
Intel 15.04%
American Megatrends 13.53%
Sahara 12.03%
Acer 8.27%
Hewlett-Packard 7.52%
Lenovo 2.26%
Samsung 2.26%
ASUS 1.50%
Toshiba 1.50%
Common models
Gigabyte G31M-ES2L 2.61%
Dell OptiPlex GX520 ... 2.61%
Dell Latitude D620 1.74%
Acer Aspire M1610 1.74%
American Megatrends Inc. ... 1.74%


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