What is RdrCEF.exe?

The genuine RdrCEF.exe file is a software component of Adobe Acrobat by Adobe.
Adobe Acrobat is a group of software and web services created by Adobe to create, view, modify and print files in the Portable Document Format (PDF). RdrCEF.exe runs a process that handles cloud connectivity features. This is not a critical Windows component and should be removed if known to cause problems. Adobe Acrobat comes bundled with Reader (formerly Acrobat Reader), a freeware tool that can view, print and annotate PDF files; Acrobat (formerly Acrobat Exchange), a paid software that can create PDF documents; and, a file hosting service. Adobe Systems Incorporated is an American software giant that develops software products for web design, video editing, web hosting, image editing, servers, as well as formats such as Flash and PDF. The company was established in 1982 by Charles Geschke and John Warnockin and is currently headquartered in San Jose, California.

RdrCEF stands for Adobe Reader Cloud Extention Feature

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 RdrCEF.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 RdrCEF.exe related errors

RdrCEF.exe file information

The process known as Adobe RdrCEF belongs to software Adobe Acrobat Reader DC or Extended Asian Language font pack for Adobe or Adobe Acrobat Reader DC MUI by Adobe Systems (

Description: RdrCEF.exe is not essential for Windows and will often cause problems. The file RdrCEF.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 1,827,000 bytes (21% of all occurrences), 1,758,904 bytes and 7 more variants. 
The program has no visible window. The RdrCEF.exe file is digitally signed. The RdrCEF.exe file is not a Windows system file. The file is a Verisign signed file. RdrCEF.exe is able to manipulate other programs and monitor applications. Therefore the technical security rating is 24% dangerous, however you should also read the user reviews.

Uninstalling this variant: You can uninstall the program Adobe Acrobat Reader DC or Extended Asian Language font pack for Adobe, update it, or ask Customer Support for help. Go to or to update it, go to for support, or go to Adobe Acrobat Reader DC or Extended Asian Language font pack for Adobe in Windows Control Panel (Software or Programs section) to uninstall it.

Recommended: Identify RdrCEF.exe related errors

Important: Some malware camouflages itself as RdrCEF.exe. Therefore, you should check the RdrCEF.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.


User Comments

Excessive CPU usage sending data to Amazon.
suddenly began having issues with cursor lag and not tracking with my pen tablet and spikes in network usage every other second on 64bit win 7 ultimate. Did not recognize 2x RdrCEF.exeunder adobe reader process tree in task manager, killed it and system resumed normal function. may not be malicious but is definitely buggy on my system.

Summary: Average user rating of RdrCEF.exe: based on 3 votes with 2 user comments. One user thinks RdrCEF.exe is essential for Windows or an installed application. One user suspects danger. One user thinks RdrCEF.exe is dangerous and recommends removing it.

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Best practices for resolving RdrCEF issues

A clean and tidy computer is the key requirement for avoiding problems with RdrCEF. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the RdrCEF.exe process on your computer, the following programs have proven to be helpful: ASecurity 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. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

RdrCEF.exe [all]