Scanning a QR Code from a Photo
I saw some threads asking how to scan a QR code from a photo, and the answers ranged from print it out and use the camera to install a third party app... there's an easier way:
Open the photo that has the QR code.
Zoom in on the QR code.
Tap on the QR code.
A pop-up appears giving you the option to open the link in your browser.