Print a multi-size QR test sheet before the poster run
Screen zoom lies. A sheet of real sizes on the wall you will use tells you which footprint still scans.
12 November 2026
Answer: Generate the code, open Test sheet, print at 100% scale, tape it where people will stand, and keep the smallest size that scans on the phones you care about.
Tool: QR test sheet — free, runs in this browser.
Designers often approve a QR in Figma at 200% zoom. On the printed poster the modules shrink and the quiet zone disappears into the background. That failure is size and distance, not “broken QR software”.
QR Print Proof builds a sheet of the same payload at several printed sizes in this browser. You print it yourself. Nothing is sent to our servers.
After you pick a size that works, run the checker again for margin and contrast on the final artwork. Then place that size in the poster preview so marketing and print share one number.