QR Codes on Business Cards: The vCard Done Right
Paper business cards mostly end their lives in pockets and drawers, but a card with a scannable corner gets its details saved before the conversation ends. QR codes on business cards work because the payload is a vCard, the same contact file format phones have exchanged for decades, compressed into a grid of modules. Here's what belongs in that payload, what to leave out, how vCard compares with its lighter MeCard cousin, and the checks that spare you a box of five hundred unscannable cards.