I cannot share a pdf anymore because he's not shared any more

Hi,

Hope you are doing well.

If I am getting it correct, you are not able to view a file that was earlier shared by you, right? If the person who shared the file with you will unshare the document then you cannot view it further if you haven't saved it.

Here is a help document you can refer to: https://www.adobe.com/devnet-docs/acrobat/android/en/review.html

Thanks,

Harsh