Clean on a phone, sharp on paper — and vector all the way through.
Cropped square and set into the cut-out. SVG stays vector all the way to the PDF.
Type something on the left
and the code appears here
The PDF leaves as vector CMYK with black set to 100% K, and the whole pattern arrives as one compound path rather than thousands of separate squares. Words in the middle are converted to curves on their own layer, so the printer needs no font from you; a blend travels as a real shading, and a placed image gets a layer to itself.