I have a problem with one of my files I been using for the last couple of months. I have tried mostly everything and is still coming up with the error message if the file is being damaged or corrupted. The funny thing about this situation is I didn't do anything different. I turn on my computer from sleep mode and saw that it said it needed to restart save all my documents and let it restart. When I tried to open both of my documents I was using one couldn't be open. I tried to recover the documents from third party users. I tried deleting the program and reinstalling it. I even try to do a restore point through my computer. Nothing work and I need something to work. All my other PDF files open and it not the one I need. Please help me.
Your PDF is propably damaged or faulty. Acrobat Reader can "repair" some minor defects of PDFs temporarly to make it viewable. You can use Acrobat DC trial to analyse and eventually repair the PDF in question.