v1.1.0

• PNG reference image is now generated alongside each DXF file
• All output files are written to a dedicated output/ directory
• Output directory is automatically recreated on each run
• Added pillow as dependency

v1.0.0

QR codes as DXF files — ready to extrude in CAD programs like Autodesk Inventor

• Single QR code or batch mode from text file
• Clean, closed outline contours (no internal edges)
• Configurable edge length in mm