Making your own QR codes is easy if you have the right app. Embed them with text, links, and even passwords. Use one of these to get started.

You can use your iPhone to scan documents, QR codes, and other files using the Notes app and your camera.

QR codes make it easy for people to point-and-tap to access an online menu, connect to Wi-Fi or link to any website. Learn how to create a QR code.

You can scan QR codes and documents on your iPad using the Camera and Notes apps. Here's everything you need to know to scan on an iPad.

The integrity of the text message and the author of the document can be verified with the use of a digital signature and QR code.