84,384,200 programs installed

Should I remove SumatraPDF?

What percent of users and experts removed it?
5% remove it95% keep it
Overall Sentiment
Good
What do people think about it?
(click star to rate)
How common is it?
Global Rank #593
United States Rank #748
Reach 1.1575%
(Not enough data to show 30 day installation trends)
Uninstallation trends (last 30 days)
Lifespan of installation (until removal)
< 13.31 days
392.63 days >
Average installed length: 206.30 days

Versions

VersionDistribution
3.2.10766 0.01%
3.2.10740 0.02%
3.2.10728 0.00%
3.2.10686 0.00%
3.2.10638 0.00%
3.2.10569 0.01%
3.2.10551 0.01%
3.2.10534 0.01%
3.2.10529 0.00%
3.2.10488 0.04%
3.2.10448 0.01%
3.2.10443 0.01%
3.2.10408 0.01%
3.1.9980 0.00%
3.1.9811 0.15%
3.1.9735 0.00%
3.1.9690 0.00%
3.1.9625 0.00%
3.1.9619 0.00%
3.1.9609 0.01%
3.1.9589z64 0.00%
3.1.9561 0.00%
3.1.2 11.36%
3.1.1z 0.00%
3.1.10375 0.00%
3.1.10369 0.00%
3.1.10360 0.00%
3.1.10314x64 0.00%
3.1.10175 0.03%
3.1.10156 0.02%
3.1.10155 0.00%
3.1.10154 0.00%
3.1.10135 0.01%
3.1.10134 0.02%
3.1.10130z64 0.00%
3.1.10127 0.00%
3.1.10106 0.00%
3.1.10097 0.00%
3.1.10082 0.00%
3.1.10051 0.00%
3.1.1 10.62%
3.1 0.71%
3.0z 0.00%
3.0 20.08%
2.6.9509 0.02%
2.6.9506 0.00%
2.6.9504 0.00%
2.6.9495 0.00%
2.6.9464 0.00%
2.6.9460 0.00%
2.6.9444 0.01%
214 versions

Other programs by Krzysztof Kowalczyk

SumatraPDF

Remove SumatraPDF
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What is SumatraPDF?  (from Krzysztof Kowalczyk)

Sumatra PDF is a free PDF, eBook (ePub, Mobi), XPS, DjVu, CHM, Comic Book (CBZ and CBR) reader for Windows. Sumatra PDF is small, portable and starts up very fast. Simplicity of the user interface has a high priority.

Overview

SumatraPDF is a program developed by Krzysztof Kowalczyk. The most used version is 3.0, with over 98% of all installations currently using this version. Upon installation, it defines an auto-start registry entry which allows the program run on each boot for the user which installed it. A scheduled task is added to Windows Task Scheduler in order to launch the program at various scheduled times (the schedule varies depending on the version). 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 main program executable is sumatrapdf.exe. The software installer includes 27 files and is usually about 9.14 MB (9,581,024 bytes). In comparison to the total number of users, most PCs are running the OS Windows 7 (SP1) as well as Windows 10. While about 44% of users of SumatraPDF come from the United States, it is also popular in Germany and France.

Program detailsProgram details

URL: blog.kowalczyk.info/software/sumatrapdf
Installation folder: C:\Program Files\SumatraPDF
Uninstaller: C:\Program Files\SumatraPDF\uninstall.exe
Estimated size: 9.14 MB

Program filesFiles installed by SumatraPDF

Program executable:sumatrapdf.exe
Name:SumatraPDF
Path:C:\Program Files\sumatrapdf\sumatrapdf.exe
MD5:9aa4a1a78935454d7d30e2ed0eaf9f94
Additional files:
  • SumatraPDF-1.6-install.exe - SumatraPDF Installer
  • SumatraPDF-1.7-install.exe
  • SumatraPDF-2.1.1-install.exe
  • SumatraPDF-2.2-install.exe
  • SumatraPDF-2.3.2-install.exe
  • uninstall.exe
  • Acrord32.exe - SumatraPDF
  • PdfFilter.dll (by Simon Bünzli) - SumatraPDF IFilter Persistent Handler (SumatraPDF IFilter Search Helper)
  • PdfPreview.dll (by Simon Bünzli) - SumatraPDF Preview Persistent Handler (SumatraPDF Preview Shell Extension)
  • npPdfViewer.dll - SumatraPDF Browser Plugin
  • libmupdf.dll (by Artifex Software et al) - MuPDF rendering library, DjVu rendering library and various helper libraries

Program behaviorsBehaviors exhibited

Google Chrome Plugin
  • npPdfViewer.dll is loaded in the Google Chrome web browser as 'npPdfViewer.dll'.
Mozilla Plugin
  • 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.
Scheduled Task
  • SumatraPDF.exe is scheduled as a task with the class '{2DF39AD4-342C-4EB1-B078-A34288249323}' (runs on registration).
Startup File (User Run)
  • SumatraPDF.exe is loaded in the current user (HKCU) registry as an auto-starting executable named 'sumatra' and executes as C:\Program Files\SumatraPDF\SumatraPDF.exe.
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 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, 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 you can restore them to their previous default settings.
Microsoft Internet Explorer
Mozilla Firefox
Google Chrome

OS VERSIONS
Win 7 (SP1) 51%
Win 10 0%
 
WHEN IT STARTS
Auto-starting? Yes
(Found in the run registry)
 
USER ACTIONS
Uninstall it 5%
Keep it 95%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 54.26%
Windows 10 42.28%
Windows Vista 3.16%
Windows XP 0.30%
Which OS releases does it run on?
Windows 7 Home Premium 22.68%
Windows 7 Ultimate 15.73%
Windows 7 Professional 12.44%
Windows 10 Home 11.52%
Windows 8.1 7.80%
Windows 10 Pro 7.35%

Distribution by countryGeography

43.72% of installs come from the United States
Which countries install it?
  United States 43.72%
  Germany 7.12%
  France 5.85%
  United Kingdom 4.69%
  Italy 4.22%
  Canada 3.02%
  Netherlands 2.57%
  Australia 1.48%
  India 1.45%
  Spain 1.38%
  Brazil 1.33%
  Poland 1.31%
  Belgium 1.30%
  Russia 1.28%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Hewlett-Packard 25.30%
Dell 18.36%
Acer 16.64%
ASUS 13.46%
GIGABYTE 7.49%
Lenovo 6.63%
Toshiba 5.50%
Samsung 3.49%
Intel 1.13%
MSI 1.07%
Medion 0.93%
Common models
ASUS All Series 8.54%
HP Pavilion dv6 Notebook ... 5.73%
HP Pavilion g6 Notebook P... 4.72%
HP Pavilion dv7 Notebook ... 3.66%
HP Z220 CMT Workstation 2.15%
HP Pavilion g7 Notebook P... 2.07%

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