App Shopper: Scanner Pro by Readdle (Business)
"Scanner Pro is perhaps the best app for quickly scanning and saving a digital version of a paper document." - New York Times.
Scanner Pro transforms your iPhone and iPad into portable scanners. It allows you to scan receipts, whiteboards, paper notes, or any multipage document.
Scanned documents can be emailed and printed, uploaded to Dropbox, Google Drive and Evernote, or simply saved on the iPhone/iPad.
The application incorporates special algorithms that remove shadows, make scans sharper, correct perspective and make them as readable as possible.