You don't need to buy a scanner to sign, scan and send official documents -- just follow these steps to use the scanner right on your iPhone.

There are three different ways to scan QR codes on your iPhone, each with its own advantages. Here's how to use them and why you might want to pick one over the others.

Attention all iPhone users: if you need to send an important document but don't have a printer, a woman demonstrates how to using Notes.