ICAO Doc 9303, ISO/IEC 19794-5, and 300 DPI layout algorithms.
Our alignment engine converts real-world millimeter requirements into high-precision sub-pixel coordinate grids using standard 300 Dots Per Inch (DPI) continuous tone printing models:
Pixel Dimension = (Millimeters / 25.4) * 300
For example, the standard 35×45 mm ICAO portrait renders at 413×531 pixels, while the 2×2 inch US standard renders at 600×600 pixels.