As smartphones have become more and more ubiquitous, so have QR codes. These maze-looking squares are a type of matrix bar code that contains data — usually, QR codes point to a website or open a ...

You can scan the QR code on your own smartphone without needing a second device. Photo: Getty Images QR codes can be scanned directly on the same smartphone without a second device. We’ll show you how ...

Scanning a document lets you share and edit documents digitally. You don't need anything more than your Android phone and its camera. Even if you're using one of our favorite budget Android phones, ...