QR Codes Practical guides to creating, printing and tracking QR codes.

A static QR code does not expire. The content is stored in the code itself, so the code can be read for as long as it stays legible. A dynamic QR code depends on an online service, so it only works while its short link stays active. When a QR code...

To make a QR code for a Google Form, publish the form, copy its responder link, and paste that link into a QR code generator. It takes about two minutes and is free. The important part is using the right link, because the address in your editing...

A static QR code stores its content directly in the pattern, so it cannot be changed or tracked. A dynamic QR code stores a short link, which lets you change the destination later and see scan statistics. Static is simplest for content that will not...

There is no single minimum size for a QR code. For most print jobs, 2.5 cm (1 inch) wide is a sensible starting point, and a very short link can go smaller if it will be scanned up close. The real limit depends on how much data the code holds and how...