Adobe Reader DC Freezes / Slow

It appears that disabling Protected mode makes the app useable again. Question is, what risks are involved? Can someone please clarify?

Hello, I have the same symptoms: upon opening local files, no larger than 10 MB, the display hangs. Meaning that the PDF is being build up and that process stops midway, then resumes after a couple of seconds. Then, when scrolling, the app stops responding again. Basically, it feels like it is freezing upon most user inputs.

I am opening files locally. The app is at it's latest version 19.012.20035. Windows 1903 with all updates and all drivers up to date. All other apps happily run on my workstation. Hardware should not be an issue here, the device has two Xeon CPUs with 20 combined cores, 64 GB of RAM, a GTX 1080 and two SSDs.

Yet Acrobat Reader DC feels like it is trying to move in cold tar.

Can Adobe kindly provide some hints for fixing this, if it is fixable on our ends? Otherwise an app update would be great. Because right now, this is such a frustrating experience.

Hello,

we are also experiencing this issue, the Software is running on Windows server 2012 R2 Terminalservers with the current version 19.012.20034

most of the times the no response/crash comes when you open the first document, every other document work better

also when opening a PDF from an Email attachment in Outlook 2010 causes this problem.

Hello Metaloader,

I am sorry for the trouble and for the delayed response. What is the version of Adobe Reader DC installed on the machine? To identify the version, please take help from the article Identify the product and its version for Acrobat and Reader DC

What is the version of the operating system installed?

Make sure you have the latest version of Adobe Reader DC 19.010.20100 installed. Reboot/log off the machine or user profile and check.

Are you/users experiencing this issue while opening the PDF files saved locally or saved on a network or shared drive?

For testing purpose, navigate to Adobe Reader's Preferences Edit>Preferences>Security(Enhanced)> and uncheck 'Protected Mode at startup', 'Run in AppContainer' & 'Enhanced Security'>click OK, restart the application and check.

Note: Disabling the Protected Mode, enhanced security is only for testing purpose, please enable it back.

Let us know how it goes and share your observation.

Thanks,

Anand Sri.

[Edited response]