Extend's bbox is already PDF points with a top-left origin and page_index is zero-based, so
this is the whole transform — verified against a form's own AcroForm widgets at 126 boxes paired,
maximum L1 residual 0.000000pt. No scaling, no y-flip, no DPR: adding one would be the bug.
Extend's
bboxis already PDF points with a top-left origin andpage_indexis zero-based, so this is the whole transform — verified against a form's own AcroForm widgets at 126 boxes paired, maximum L1 residual 0.000000pt. No scaling, no y-flip, no DPR: adding one would be the bug.