Calibrate first
Use the included A4 guide, correct the four reference corners, and keep the scale and reprojection evidence visible.
Leather Pattern Digitizer
Photograph one paper or card leather pattern beside a known calibration reference. Correct the suggested corners and outline, review the quality evidence, and print the result at 1:1 scale.
Reviewed geometry ยท 1:1 export
Use the included A4 guide, correct the four reference corners, and keep the scale and reprojection evidence visible.
Drag points, convert straight segments to curves, and add holes, notches, fold lines, grain lines, and notes.
Export 1:1 PDF, overlapping A4 or Letter tiles, SVG, and documented JSON. Measure the 100 mm square before cutting.
The app digitizes an already-flat pattern piece. It does not reconstruct hidden geometry from a finished leather item, grade sizes, or claim production tolerances beyond the capture and review evidence.