Would you provide more information about the problem so that we can assist you?
Which app do you use? Acrobat DC for iOS or Android?
Do you mean that the app will not launch?
What do you do to try to open files (presumably PDF files)?
Do you see an error message when you try to open a file? If so, can you provide the exact message that you see on the screen?
hi, i use Acrobat dc for iOS.
The problem is that I can't open the files. The app is ok, the problem is the files.
no, I don't see any message.
Hmm. I am sorry. But I still don't know what's happening on your iPad/iPhone.
Would you describe what you are doing step by step? I do understand that you are trying to open a file. But what do you exactly mean by "I can't open the files"? When you try to open a single file, what happens after that? What do you see on the screen?
How did you determine that your files have problems without seeing an error message?