Lay out the tag and see it at true size against the real die line. Drag to move, use the corner handle to scale and rotate. The openings at each end take the wristband ribbon — keep artwork clear of them.
bleed, 2 mm out · die line · safe margin, 3 mm in and 1.5 mm clear of every perforation
Why this matters: the JSON records where each element sits in millimetres against the real die line, and which file it came from. Production rebuilds the layout at print resolution from those originals — a PDF stays vector — so nothing is printed at screen quality.