The Ultimate QR Code Printing Guide
Essential specifications for printing QR codes on posters, table tents, business cards, stickers, and product packaging so they scan reliably every time.
1. Minimum QR Code Physical Size
The physical size of a printed QR code depends directly on the scanning distance. A general rule of thumb is a 10:1 scanning ratio (Distance to Target Size).
- Handheld cards (10–20 cm distance): Minimum 2.0 × 2.0 cm (0.8 × 0.8 in).
- Table tents (30–50 cm distance): Minimum 3.0 × 3.0 cm (1.2 × 1.2 in).
- Wall posters (1–2 m distance): Minimum 10.0 × 10.0 cm (4.0 × 4.0 in).
2. The Quiet Zone Requirement
Every QR code requires a mandatory "Quiet Zone"—a clear, unprinted margin surrounding all four sides of the QR matrix. Without a quiet zone equal to at least 4 module widths, camera sensors cannot isolate the code pattern from surrounding background graphics.
3. Resolution & DPI
Always export your print assets as vector PDF, SVG, or high-resolution 300 DPI PNG files. Low-resolution raster images blur the sharp corners of QR modules, causing scanner decoding failures.
4. High Contrast & Matrix Polarity
Always place dark QR modules on a light, solid background (ideally white or pale off-white). Avoid inverted light-on-dark QR codes, as many smartphone camera sensors and budget Android decoders cannot invert the matrix pattern.
5. Center Logo Area Limits
Keep central logo badges under 20% of the total QR surface area. This ensures Reed-Solomon error correction (Level M with 15% redundancy or Level H with 30% redundancy) can fully reconstruct covered data blocks without scan delays.
For specific physical dimensions across standard print media (A4 posters, counter signs, table tents, and business cards), consult our QR Code Print Size Cheat Sheet.