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Parameters
ISO/IEC 18004:2024 defines QR Code Model 2 (versions 1–40, modules 21×21 – 177×177). Four error-correction levels restore 7–30% of damaged codewords. Quiet zone must be ≥ 4 modules on every side.
Preview
Parameters
ISO/IEC 15416:2025 specifies print quality for linear barcodes. Key parameters: X-dimension, quiet zone ≥ 10× X-dim, bar height, and human-readable interpretation. Check digit computed automatically.