Suddenly I cant save PDF files in Adobe Acrobat Reader. I found a solution here:-
https://community.adobe.com/t5/acrobat-discussions/how-can-i-repair-damaged-pdf-files/m-p/7158399
Go to Edit menu> Preferences> General and unmark the box for "Show online storage when saving files".
Click OK to save settings and relaunch the application.
Make sure that the application is updated to the latest patch released.
