Is there any way when reading a very large PDF, to bookmark my last reading location in the document, so that when I return I can go immediately to the place, otherwise I tend to forget where I finished lat time?
1. Open Reader
2. Click Preferences > Edit
3. Click the Document menu on the left
4. Place a checkmark in "Restore last view settings when reopening documents"
5. Click OK.
See if that works for you.