Adobe [Acrobat] Reader update will not touch your files; most likely they are still exactly where they used to be.
Anyway, what files are you talking about: local files, or files stored on the Cloud (Acrobat.com) ?
What is your operating system?
I had a lot of folders not stored on the cloud. But now I have no idea where i can find them!
I have a kindle fire hd.
Can you help me finding My file?
[topic moved to Reader/Acrobat DC for mobile forum]