It's easiest to demonstrate in the built-in Preview app. You can perform powerful tricks in transforming paper to bits with your iPhone by itself, using software like Adobe Scan, JotNot Pro, PDFPen, or Evernote—or even Apple's Notes app.īut you can save a step and use a bigger screen for editing and other tasks by selecting an option you might not have known existed. Your iPhone is often the best camera you have with you, and it's also the best scanner for your Mac.