You've probably seen them in newspapers, magazines or other paper-based publications: two-dimensional bar codes, called quick response codes (QR codes).

That’s legitimately the whole deal—you run the code, generate the PDF, then print the file. That piece of paper is now your backup. Naturally, qr-backup works in reverse, too.

There are still a few customers who prefer QR codes over paper, such as 38-year-old photographer Phil Armstrong, who told the Journal it is a quicker way to order and pay when he’s in a rush.

As long as you have the QR code as an image file, then you can print it out on a document, poster, brochure or banner sign. Printing QR codes onto paper is a convenient way to target people with ...

The hype hasn’t died out yet, though; QR codes are continuing to take off. While prior to the pandemic it seemed like they were on their way out, 75.8 million U.S. smartphone users scanned a QR ...

A QR code can kill the mood: phones up, blue lights on, conviviality off. “The bottom line is: The QR code is the antithesis to romance,” said Richard Boccato, the owner of Dutch Kills Bar in ...

In the case of QR code scanning, bigger is better. If you're printing the bar code on a product, make sure that the squares making up the code are 1.0mm for older camera phones (they can be as ...