Worked example: one URL, version 4, 32.8 mm
Inputs, module count, and assumptions.
- Inputs
- Text
https://qrprintproof.example/guides/worked-example/. Error correction M. Quiet zone 4 modules. Module size 0.8 mm. Foreground #111111. Background #ffffff. Scanning distance assumed 20 cm. - Result
- 33 modules (version 4). Total with quiet zone: 41 modules. Width 41 × 0.8 = 32.8 mm. Contrast of #111111 on white is about 19:1, over the 4:1 flag. 32.8 mm is over the 20 mm rule of thumb for a 20 cm scan, and over the 20 mm small-print flag.
- Assumptions
- Byte mode, error correction M, generated with the Kazuhiko Arase library shipped in this site. The distance rule is a house rule of thumb, not a scan certificate. Gloss, color management, and camera differences are not modeled.
- What to do next
- Print the 15–40 mm sheet at 100% and scan it. The on-screen result is the artwork check only.
The same URL is the sample button on checker.