QR code guides

Short, practical guides to making QR codes that work, and keep working.

• Static vs. dynamic QR codes

  Why some codes stop working when a subscription lapses, and how to choose one that lasts.

• What size should a QR code be?

  Print sizes by scanning distance, and how much the content matters.

• QR codes that scan every time

  Ten rules for contrast, size, logos and surfaces, and a checklist before you print.