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RdrCEF high cpu usage

New Here ,
Dec 15, 2015 Dec 15, 2015

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Good Morning.
First of all, sorry for my low level of English.

A few days ago I installed Adobe Reader DC on all servers in my farm Citrix XenDesktop 7.6. Everything started well but now I have problems with high CPU usage. I have seen that for each user using Reader DC open between 1 and 3 processes with the same name, RdrCEF.exe. This process consumes a lot of memory and sometimes, depending on the PDF file, use much of the CPU causing performance problems in other user sessions on the server .

What is this process RdrCEF? Why it is opened several times per user ? And most importantly, how I can prevent this process use as much CPU?

I hope someone can help me.
Thank you.


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General troubleshooting

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correct answers 2 Correct answers

Adobe Employee , Oct 13, 2016 Oct 13, 2016

Hello Everyone,

We have fixed such issues with our latest update. I would request you all to update Adobe software via Help -> Check for updates...

Please let us know if you face this or any issue after update.

-Thanks

Sunil Soni

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Community Beginner , Sep 17, 2021 Sep 17, 2021

Reader DC 2021.00.7.20091 32bit version was causing trouble for us on our 2016 RDS farm srevers. I tried running updates, repairs and reinstalling but no luck. Upgrading to the 64bit version has seemed to do the trick for us.

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Guest
Oct 09, 2016 Oct 09, 2016

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Hi David and those who face the same problem.

Fully agree that Adobe shouldn't leave the problem without solution.

Apparently it's a compatibility issue between RdrCEF.exe and windows versions after Vista.


For David and anyone else who has the same configuration (Win10, Adobe version: 2015.017.20053) a simple and quick solution:
1. Go to: C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF
2. Right Click on "RdrCEF.exe"
3. Select Compatibility tab
4. Either run compatibility troubleshooter and try the different versions or tick compatibility mode and select "Windows XP (Service Pack3)"
5. The issue will stop without losing functionality
Another solution is to roll back to Adobe reader 11.
Hope it helps.

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Community Beginner ,
Oct 12, 2016 Oct 12, 2016

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Any solution with Apple OS El Capitan ?

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Community Beginner ,
Oct 12, 2016 Oct 12, 2016

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Solved with the latest version 2015.020.20039 🙂 #happy

+ connexion problem with my adobe account solved too !!!
But still trouble with printing a pdf file #noway since 3 years on my computer... I'll find the adapted forum for that

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Community Beginner ,
Sep 05, 2017 Sep 05, 2017

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Thanks a lot Antonis, it resolved my problem setting the compatibility mode to windows 7.

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Adobe Employee ,
Oct 05, 2016 Oct 05, 2016

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Hello,

Please do let me know if you are  facing the issue.

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Community Beginner ,
Oct 12, 2016 Oct 12, 2016

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What about the same trouble with Apple OS El Capitan 10.11.6 + Adobe Acrobate Reader DC 2015.017.20053 ?

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Adobe Employee ,
Oct 13, 2016 Oct 13, 2016

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Hello Everyone,

We have fixed such issues with our latest update. I would request you all to update Adobe software via Help -> Check for updates...

Please let us know if you face this or any issue after update.

-Thanks

Sunil Soni

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New Here ,
Jan 24, 2017 Jan 24, 2017

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Hopefully Adobe is still monitoring this, but I found this thread when trying to fix the high CPU usage issue I have.

I also have the issue where all PDFs I open go full screen regardless of last open or last setting.

I ran an update and also installation repair, but cpu usage still very high.

OS: Win 7 x64

Adobe Acrobat Reader DC

Installed version: 2015.023.20056

I tried the easier solution above by Antonis and both the high cpu usage and always full screen issues were gone after I set the file to Win XP SP2 compatability mode.

Looking forward to an official fix coming out for this since I'm sure others have the same issue.

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New Here ,
Jan 31, 2017 Jan 31, 2017

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Yup still having the same issue after updates,  figure adobe gave up on trying to fix this will all OS versions of windows.. Running windows 7 x64..

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Adobe Employee ,
Apr 09, 2017 Apr 09, 2017

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Hello,

Please update the product via Help->Check for updates... and send us following information if issue still persist.

  • Product(Acrobat or Reader)
  • platform/OS information
  • Application version
  • Steps to reproduce the issue and Screenshot of Reader at that time
  • Screenshot of Task Manager(WIN)/Activity Monitor(MAC) [Make sure Reader and RdrCEF processes are visible with memory and CPU usage information]

Please keep us posted.

-Thanks

Acrobat Team

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Explorer ,
May 04, 2017 May 04, 2017

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Hi Sunil2201

Have a Customer with problems with this process also. Problems show in both high CPU usage + high memory use. Even after users closed Down Acrobat reader, "Adobe RdrCEF" just keeps running. Today had one user with closed Adobe, but 2 running "Adobe RdrCEF" using apx. 6 Gb of RAM (out of 16 Gb on the 2012 R2 Terminal server"), I've checked for updates through Adobe Acrobat, but says there are no updates. I'll try a repair of Acrobat Reader DC today at noon Danish local time - But not quite sure that will solve the problems. Attached one of the screenshots I have (only for one user, but can happen for more). Are the developers looking into these problems? Is Adobe RdrCEF supposed to run, when Adobe Reader DC is not running??????

System Info:

Windows server 2012 R2 Terminal server

16 Gb RAM

Kind Regards

Kim
Adobe RdrCEF.jpg

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Adobe Employee ,
May 24, 2017 May 24, 2017

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Hi Kim,

Yes, RdrCEF suppose to run if Reader DC is running because RdrCEF is responsible for multiple services provided by Reader DC.

Sorry for the inconvenience caused to you.

Ideally RdrCEF processes shouldn't consume system resources as significant as mentioned by you.

To understand the issue, we would require following information:

  • Environment/Platform/System information
  • Application(Reader) version
  • Are you using/installed any screen reader(JAWS, NVDA, etc.)
  • How much time reader is running for ?
  • Fiddler logs for analyzing network traffic
  • Exact steps to reproduce the issue(capture a video to reproduce the issue if possible)
  • Processes memory dump
    • Task manager -> Right click on the "RdrCEF" process and create dump File
    • Task manager -> Right click on the "AcroRd32" process and create dump file

Kindly keep us posted with the required information.

-Thanks

Sunil Soni

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Explorer ,
May 24, 2017 May 24, 2017

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Hi Sunil

Thanks for the reply. At one time, 2 processes used 6 Gb RAM over 2 users 3 Gb to each RdrCEF process, so had to do something.

I renamed the RdrCEF.exe file, user hasn't complained about any issues (so guess they're not using a part of Acrobat Reader that uses this.

When new Adobe Reader is out in Danish, I'll update to that (after a couple of updates), and see if the problems still persists.

Kind Regards

Kim

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Adobe Employee ,
May 24, 2017 May 24, 2017

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RdrCEF.exe is a detachable process of Acrobat or Reader. It takes care of multiple reader services(like Fill and Sign, Document Cloud, Send For Signature, Send and Track, Create PDF, Export PDF, etc.) of the product. If you disable it by renaming/deleting RdrCEF.exe(which is highly not recommended), it would lead you to lack of functionalities.

Anyways, Keep us posted with your observation after applying latest update.

-Thanks

Sunil Soni

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Explorer ,
Dec 15, 2017 Dec 15, 2017

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Hi Sunil

I have the dumps for some op the "crazy" RdrCEF processes. Where can i Upload them to?

Kind Regards.

Kim

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Adobe Employee ,
Dec 18, 2017 Dec 18, 2017

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Hi Kim,

Would you upload the dump files to Adobe Send: How to share a document  and share that with @Sunil via private message :How Do I Send Private Message

That way Sunil will be able to download the file from Adobe Send directly without giving access to any other person.

-Tariq Dar

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Guest
Dec 28, 2017 Dec 28, 2017

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We have this same issue on Server 2008 r2 servers with citrix. We have had about 20 different environments have this issue now. So far removing all adobe products and then running the clean up tool then re-installing helps. Also the users having the issue have needed their profiles rebuilt. This just buys time though as it has already started coming back. We are on the latest update as well. I'll try and gather the dump files the next time I catch it live.

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Explorer ,
Dec 13, 2017 Dec 13, 2017

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Hi Sunil

This problem is back. It seems that somehow the file is recreated, and then becomes a active process Again.

Environment/Platform/System information - Windows Server 2012 R2, Terminal/RDS server

  • Application(Reader) version - Adobe Reader DC 2018.009.20050
  • Are you using/installed any screen reader(JAWS, NVDA, etc.)  - No not to my knowledge
  • How much time reader is running for ? - ?
  • Fiddler logs for analyzing network traffic - I don't know this Tool, but do You think this problem is Network related?
  • Exact steps to reproduce the issue(capture a video to reproduce the issue if possible) - Users just use Acrobat Reader, then at some time problem occures.
  • Processes memory dump - I'll Collect dumps, when problem is there Again.
    • Task manager -> Right click on the "RdrCEF" process and create dump File
    • Task manager -> Right click on the "AcroRd32" process and create dump file

Kind Regards

Kim

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New Here ,
Oct 05, 2017 Oct 05, 2017

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Got the same issue even in acrobat DC version 2017.012.20098

RdrCEF.exe is consuming one full core and almost 4 GB memory per process.

One user is spawning 3 of these processes and thus slowing the RDS server to a crawl.

If wanted I can provide the dump files of these processes.

Kind regards,

Hen

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Guest
Nov 13, 2017 Nov 13, 2017

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This issue is also reported here.  High memory usage in a Remote Desktop / Citrix environment.

https://forums.adobe.com/message/9672381#9672381

The only solution we have so far is to downgrade back to Adobe XI.  Otherwise just a couple of users could max out the memory on a server and cause issues for everyone.

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Adobe Employee ,
Nov 15, 2017 Nov 15, 2017

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Hi kg,

The latest update has been released yesterday for both Acrobat and Reader Overview — Acrobat and Adobe Reader Release Notes

Try installing the latest update and let us know if that resolves your issues?

-Tariq Dar

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New Here ,
Dec 08, 2017 Dec 08, 2017

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I have version 2018.009 installed and noticed one RdfCEF with constant high CPU load, other have minimal load.

Killed the high load process, new one from same user has low usage now

--

Pawel

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Guest
Feb 14, 2018 Feb 14, 2018

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I tried updating to the latest.  No change in the situation, we still see the spike in memory usage in the systems.  Essentially, I have been able to work around the issue by renaming the rdrCEF.exe file to something different.  Everything we use the Reader for works fine without that file.  The auto update will sneak the file back in so you have to add this registry entry to block auto updates.

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown]

"bUpdater"=dword:00000000

I've read forums that you can change the dword value to dword:00000001 to allow manual updates. 

hope this helps anyone else stuck in this situation.

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New Here ,
Mar 02, 2018 Mar 02, 2018

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Very same problem here, RdrCEF process uses 40% CPU and 3.7 GB RAM!

Adobe Reader DC version 18.011.20038

Operating System is Windows Server 2012 R2

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New Here ,
Mar 13, 2018 Mar 13, 2018

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Same Problem here:

Operating System Windows Server 2016

Adobe Reader DC Version 18.011.20038

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