Well, when your iPad is connected to laptop (not sure if wi-fi works, I haven't tried) you go into the apps section and scroll down to the bottom of the app page and all the document holding apps which contain documents will be there, The app which has the document and right click on the app, this will show the documents on there. Can't remember what button but I'm sure you can try it and see. Copy or something. Haven't got access to laptop so can't remember exactly.
Sent from my one and only original iPad using iPF