QR Codes in Print: Size, Contrast, and Placement
Printing QR codes on flyers, packaging, and posters requires minimum sizes and contrast ratios. Learn the rules for reliable scanning in physical print media.
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Tags: qr-code, print, design
QR Codes in Print: Size, Contrast, and Placement for Reliable Scanning Most QR codes that fail in print fail for the same few reasons: printed too small, low contrast, insufficient quiet zone, or placed on a surface the scanner can't read. These problems are all avoidable. This guide covers the technical requirements for reliable print QR codes — minimum sizes, contrast rules, quiet zones, error correction, and a pre-print testing checklist. --- Minimum Size Requirements The minimum size for a QR code depends on one thing: the distance from which it will be scanned. The Rule Minimum QR code size = viewing distance ÷ 10 | Viewing Distance | Minimum Size | Recommended Size | |-----------------|-------------|-----------------| | 15 cm (business card, held in hand) | 1.5 cm | 2.5 cm | | 25–30…
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