iPad printing too small
My iPad prints forms and documents too small. About 1/2 size. How do I print it full page?
iPad Air, iOS 9.3
Unfortunately, using AirPrint with iOS devices has little to no control over print setup.
Your printer (which you do not mention) may have a specific iOS app that may allow more control over how documents are printed.
Search the App Store for you printer brand and see if something turns up.