recently the pdf preview has stopped working for me in my Outlook 365.
I have the latgest adobe DC installed with all updates, latest office365.
using the repair function in adobe resets everything and it works ok for a while but then randomly the preview goes blank again.
Thanks for reporting this to us.
Have you started experiencing this issue after installing the latest patch or this has been there from long?
Meanwhile, try this-
1- Make sure you have got Acrobat up-to-date. Open Acrobat or Acrobat Reader DC (your default pdf viewer)>help>check for update
2- Open Outlook.
Go to "File">" Options">" Test Center">" Trust Center Settings">" Attachment Handling".
Ensure that the "Turn off Attachment Preview" option is unchecked.
Tap the "Attachment and Document Previewers" button and then check if the option that says "PDF Preview Handler" is ticked or enabled.
it says Version 2022.001.20085 64 bit
OS is Microsoft Version 10 enterprise version 10.0.19043 Build 19043
Adobe Acrobat DC is up to date. Will try the suggestion next time it happens
This seems similar to the issue mentioned at the thread: https://community.adobe.com/t5/acrobat-discussions/pdf-previewer-not-working-in-outlook/td-p/1238292...
Could you please follow the workaround suggested at the above link and see if it helps.
Workaround did not work, issue still reoccurs, it can take anything from 2 days to nearly 5 for the issue to happen again, user uses the function everyday but the bug is random