QR codes in Saudi: 7 rules to boost scan rate 200%

QR is powerful. But when did you last scan one off a billboard? These 7 rules double scan rate.

1. Minimum 3×3 cm

For posters: 10×10 cm. Rule: QR height = scan distance / 10.

2. High contrast

Classic: black on white. Dark on light works. Never light on light.

3. Tell scanners what happens

"Scan for menu" beats QR alone. People need a reason.