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QR Code Printing Guide

Printing QR codes correctly is essential for reliable scanning. Here is everything you need to know about size, contrast, materials and testing.

Minimum Print Size

A QR code should be at least 2 cm × 2 cm for close-range scanning (under 30 cm). For longer distances, the code must be larger. As a general rule, the scanning distance should be roughly 10 times the QR code width.

Use our QR code size calculator to find the right dimensions for your use case.

Quiet Zone

Every QR code needs a quiet zone — a blank margin around all four sides. The quiet zone should be at least 4 modules wide (about the width of 4 small squares in the QR code). Our generator includes this automatically.

Contrast

The QR code must contrast sharply with its background. Dark code on a light background works best. Black on white is the safest choice. Avoid light-coloured codes on dark backgrounds unless you test extensively.

Print Materials

  • Paper: Works well. Use matte rather than glossy to reduce reflections.
  • Labels and stickers: Good for product packaging.
  • Fabric: Challenging — QR codes can distort. Test first.
  • Outdoor signage: Needs to be large and weather-resistant.
  • Screens: Works well. Ensure screen brightness is adequate.

Testing

Always test before mass printing:

  • Test on at least 3 different phone models.
  • Test at the actual distance users will scan from.
  • Test in different lighting (bright sun, dim room).
  • Print one sample first before ordering hundreds.

See our QR testing guide for a complete checklist.