While QR codes haven’t been the marketing juggernaut that companies have hoped, it’s still an extremely useful technology for sharing things online quickly. Asking a teenager to download a QR code ...

QR codes — or "Quick Response" codes — are square-shaped barcodes that can be scanned by mobile devices. They are used for a variety of applications, from pulling up a restaurant menu to directing ...

There are still needs for paper-based documents in certain circumstances where electronic documents cannot efficiently replace them. For example, documents issued by the government such as birth ...