You can scan a QR code using the camera on your smartphone, tablet, or computer — however, you may need to download an app.

QR or Quick Response codes are one of the most popular ways to access information on the go. Invented in 1994 and once considered the wave of the future, part of the QR code revival that started in ...

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

Free software on your phone or tablet lets you scan, create, edit, annotate and even sign digitized documents on the go.

These days, it's pretty easy to digitally sign important documents, but sometimes you just need to sign a physical piece of paper and scan it to send over email. When you just have to put your ...