I couldn't find a way to rename my files in my iPad2 Adobe (they were downloaded from a company's web site and were named with just random letters and numbers), so this is what I did:
1. Connected my iPad to my PC and opened iTunes.
2. Emailed them as atttachments from my iPad and opened the received email on my home PC, then Saved them in My Documents.
3. I renamed them on my home PC.
4. In iTunes, clicked on DEVICES and my iPad device.
5. Selected APPS from the menu bar.
6. At the bottom of the screen under File Sharing and Apps, click on Adobe Reader
7. At the bottom of the Adobe Reader Documents list, click on the Add... button
Once you add them to iTunes, you'll see them automatically on your iPad.
8. Now you can delete your pre-renamed files.
/avatar/30.png?a=-1){kind=small}
