The 10:1 rule
Max scan distance = 10x QR size.
Minimums
Cards: 2cm. Flyers: 2.5cm. Posters: 10cm.
QR code size guide
QR code sizes for print and digital.
Ad Space
QR code sizes for print and digital.
Max scan distance = 10x QR size.
Cards: 2cm. Flyers: 2.5cm. Posters: 10cm.