I have a big problem with Acrobat Reader DC.
I have a file which is signed with an Austrian Official Signature (PadES).
Visually there is a table embedded in the file, but the table isn’t shown by Acrobat Reader DC.
In other viewers (e.g. MS edge, google chrome) the table is visible.
If you close the file, Acrobat Reader asks whether you want to save the file. Why? I didn’t change anything.
Is there a bug in Acrobat Reader DC?
Hope you are doing well and sorry for the trouble. As described, the table in the PDF file is not showing in Adobe Acrobat Reader DC application though it can be viewed on web browsers.
Web browsers use their own PDF mechanism to render and display the PDF content and they are not Adobe dependant. Also, i have checked the PDF file you have attached and found hat it is created using a non Adobe application. Please ask the author of the document to create PDF using Adobe Acrobat Pro DC application and see if that works.
"If you close the file, Acrobat Reader asks whether you want to save the file. Why? I didn’t change anything."
Acrobat Reader repairs the file. This is the reason for the save prompt.
What is to repair?
And why is the digital signature removed after this reparation?
I don't know.