Why can't I open old documents from Dropbox on my mobile device? (Part 2)

Episode 961 (44:24)

Ronald from Los Angeles, CA

Leo says that the documents could be corrupted. It may also be that the phone just can't open the format it has. If the format is something generic like PDF, then it could be that the copy wasn't sent to the phone properly. Or, if the phone just can't read it, he can open it on his desktop and recreate it. That could solve the issue. He should try using FoxIt, not Adobe Reader. Adobe has security issues these days.