As per the description above, you are getting error code 2148073501 when attempting to sign a PDF document, Is that correct?
Please refer to the following links which discuss the similar issue: Error 2148073513 When Attempting To Digitally Sign In Acrobat 11 Standard Link: https://forums.adobe.com/thread/1156315
Hope this helps, and keep us posted with the results.
1 person found this helpful
Thanks for the reply. I actually resolved this just now by updating ActivClient on my computer to version 188.8.131.52 FIXS1303006 on Windows 10 64 bit.
Hope this will help someone else.
Glad it's working now! Thank you for sharing the workaround.
Feel free to contact us if you face any issue in future.