What is PDFBackend.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the PDFBackend.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

Click to Run a Free Scan for PDFBackend.exe related errors

PDFBackend.exe file information

Windows Task Manager with PDFBackend
PDFBackend.exe process in Windows Task Manager

The process known as pdf24 belongs to software pdf24 by Geek Software GmbH (

Description: PDFBackend.exe is not essential for the Windows OS and causes relatively few problems. The file PDFBackend.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 134,144 bytes (89% of all occurrences), 206,992 bytes or 182,928 bytes. 
The process can be removed using the Control Panel's Add\Remove programs applet. There is no file information. The program has no visible window. The file is not a Windows system file. The application starts upon Windows startup (see Registry key: MACHINE\Run). Therefore the technical security rating is 52% dangerous.

Uninstalling this variant: There is a possibility to do the following:
  1) uninstall pdf24 from your computer using the Control Panel applet Uninstall a Program
  2) contact to assist you
  3) check the vendor’s website for a newer version.

Recommended: Identify PDFBackend.exe related errors

Important: Some malware camouflages itself as PDFBackend.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the PDFBackend.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


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Best practices for resolving PDFBackend issues

A clean and tidy computer is the key requirement for avoiding problems with PDFBackend. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the PDFBackend.exe process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

PDFBackend.exe [all]