You probably think you need to use your smartphone's camera to scan a QR code, right? That's not the case — it's entirely possible (and super-easy) to scan a "Quick-Response" code that's already saved ...

Have you ever had a friend send you a QR code image saying, "Please add me on LINE," but...Have you ever been stuck wondering, "How do I read a QR code from an image?"Information from shops or ...