Safe Mode Feature Demo

Circle Shape Example

Safe Mode ON (Default)

Functional patterns: Squares
Data modules: Circles

✅ Optimal for scanning

Safe Mode OFF

All modules: Circles

⚠️ May affect scannability

Extra Rounded Shape Example

Safe Mode ON

Functional patterns protected

Shape Preview

The extra rounded style creates soft, organic shapes with large corner radii.

With safe mode ON, only data modules get this treatment.

Diamond Shape Example

Safe Mode ON

Artistic style with reliable scanning

Safe Mode OFF

Full artistic effect (use with caution)

Usage Example

# Safe mode is ON by default
write(qr, "output.svg", shape="circle", safe_mode=True)

# To disable safe mode (use with caution)
write(qr, "output.svg", shape="circle", safe_mode=False)

Protected Module Types

• Finder patterns - The three corner squares
• Finder inner patterns - The inner part of finder patterns
• Timing patterns - Alternating modules between finders
• Alignment patterns - Additional position markers
• Format information - Error correction and mask info
• Version information - QR code version data
• Dark module - Always-dark reference module