QR Code Guides
Short, specific articles about making QR codes that actually work in the real world — on a table tent, a shop window, a billboard.
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How Small Can a QR Code Be? The 10:1 Rule, With Numbers
Work out the smallest size your QR code can be printed at and still scan, using the distance it will be read from and the size of a single module.
4 min read
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Print-Ready QR Codes: SVG, DPI, Quiet Zone and Ink
How to hand a QR code to a printer so it comes back scannable — which file format, what resolution, how to specify the black, and what to keep away from the trim edge.
4 min read
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QR Code Error Correction: When L, M, Q and H Actually Matter
What the four error-correction levels do, why a higher level can make a small code harder to scan, and which one to pick for logos, labels and outdoor signs.
4 min read
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QR Code Not Scanning? Work Through These 10 Causes in Order
A diagnostic checklist for QR codes that will not read, ordered from the most common cause to the rarest, with the fix for each.
4 min read
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Static vs Dynamic QR Codes: Which One You Actually Need
A static code stores the data in the image and never changes. A dynamic code stores a redirect you can edit. Here is how to pick, and what the trade really costs.
4 min read