qr-codes.biz User Guide
Pattern Size, Error Correction & Quiet Zone
Control the basic QR data pattern, how much damage or obstruction it can tolerate, and the clear space around the code.
Module Pattern
The data modules are the small shapes that make up most of the QR. Available patterns include Square, Rounded, Classy, Classy Rounded, Extra Rounded, Abstract / Connected, Circle / Dots, Diamond, Ellipse, Star, Cross, Plus, X, Heart, and Ribbon.
Pattern Size
Pattern Size scales ordinary data modules from 50% through 120% without changing the overall QR dimensions or the finder eyes.
Error Correction
| Level | Approximate recovery |
|---|---|
| Low (L) | 7% |
| Medium (M) | 15% |
| Quartile (Q) | 25% |
| High (H) | 30% |
Quiet Zone
The quiet zone is blank space around the QR. Options are 2, 4, 6, or 8 modules.
Tip: Use High error correction when using a large center logo or more experimental design elements.