Acrobat pro unable to open attachments

Hi there

Hope you are doing well and thanks for reaching out.

Would you mind sharing more details about the issue you are experiencing? What happens when you try to open the attachment in the PDF file? Do you get any error message? If yes, please share the screenshot of the same for more clarity.

What is the workflow/steps you are doing? Please share the screen recording of the same for better understanding.

What is the version of the OS and the Acrobat DC you are using? To check the version go to Help > About Acrobat and make sure you have the recent version 24.02.20759 installed. Go to Help > Check for updates and reboot the computer once.
 
Also try to repair the installation from the help menu (Win Only) and see if that works.
 
Please try to reset the Acrobat preferences as described here https://adobe.ly/3Vl6pIV and see if that works.

~Amal

We got the same error as Taylorworks when opening an .xlsm file with Acrobat 11.0.23 I clicked the Help button on the message , which takes you to https://helpx.adobe.com/acrobat/using/attachments-security-risks-reader-acrobat.html

This file explains the restrictions, and provides steps to modify the "black" and "white" lists. Basically, it says to right click on the attachment and choose "Open Attachment", which will give you a dialog box of options. I do not get a dialog, just the same error as when I tried to open it.

I tried the solutions in the links you provided; none worked. I did not try editing the registry, as this is not practical for us; we and the customer have many installations of Acrobat and for the most part do not have the ability to modify the registry.

Do I need a later version? This is a huge issue for our customer, the US Air Force.

Thanks, Debra Lee