Did you ever need to fill out a printed form using your iPad?
You can scan a printed form into your iPad using "Scanner Pro". Then use "PDF Expert 7" to annotate it or fill-in the blanks. The basic features of "PDF Expert" are free. "Scanner Pro" is well worth the few dollars that the app costs! You can print out the updated document or save it as a pdf to use elsewhere.
Download these apps from the Apple App Store.