Choose the strap, the hardware and the print, and see the lanyard as it is worn. Artwork is designed on one repeat, then tiled down the strap — which is how a screen-printed lanyard is actually made.
Why this matters: the JSON records the repeat, where each element sits in millimetres, 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.