Transfer PDF from iPad to Mac without Internet

No internet access here except iPhone. Therefore, I can't download an iPad file explorer, nor email a PDF to myself. Is there another way to "reverse sync" a PDF? (Backup will NOT do it). I did actually send by email, thinking sync would let me pull it from the Drafts (unsent) in Mail. Alas, Apple has decided there's no longer any value in syncing Mail. I do already have two such explorer apps, but one announces it is not compatible with IOS 8, and the other does nothing when I select "mount device."