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 ...
Savvy iPhone users know what to do when they see a QR code in the wild. Open the Camera app, aim, and tap the link that gets revealed. But what about QR codes in images and PDFs that are already on ...
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