In short, Recently, my iPad (v11.2.1) had issues with the Adobe Reader (v 17.12.15) while working with my pdf files. whenever I make changes, highlights or underlines, the changes won’t be saved and couldn’t be opened afterwards.. later on, when I tried to open the files in my Mac, it shows the files are corrupt or damaged. I used an older version of my files, after the new ones were broken, but still they get damaged after editing,, WHAT SHOUL I DO??
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