Best Practices for Print QR Codes
This guide covers practical, test‑backed recommendations to ensure your QR codes scan reliably in print.
1. Physical size
For typical hand‑held scanning, keep the code at least 20–25 mm (0.8–1.0 in). Increase size for longer viewing distances, lower lighting, or dense data.
2. Quiet zone
Maintain a white margin of at least 4 modules around the code. Avoid placing logos or graphics intruding into this quiet zone.
3. Contrast and color
Use a dark foreground on a white background. Avoid reversed (light on dark) unless thoroughly tested. Steer clear of gradients or textures inside modules.
4. Error correction
Use M or Q for most print jobs. Higher levels add robustness to damage but increase symbol density.
5. Vector vs raster
Prefer SVG for vector workflows. If you must use PNG, export at high pixel dimensions (e.g., 4096px) and disable smoothing when scaling.
6. Substrate and finish
Gloss, metallic, or textured substrates can reduce scan reliability. Favor matte finishes and avoid reflective laminates directly over the code.
7. Testing
Print proofs at actual size and test with multiple devices under realistic lighting. Verify the target URL or content is correct and accessible.
8. Content hygiene
Use HTTPS links, avoid link shorteners when possible, and ensure the landing page is mobile‑friendly and fast.