1 · Card size
Page format
Print resolution
Higher DPI only helps if your source art actually has that much detail — see the required upload size below, which updates with this setting.
Cut down the middle of this blank gap — no ink touches the trim line, so nothing gets marked up. Larger gap = easier to cut accurately, but eats into page margin on tight combinations.
No folder chosen — every file will go to your computer's normal Downloads folder (the same place any web download goes). Pick a folder below only if you want files to skip that and save somewhere specific instead.
2 · What to upload
This number does not change between US Letter and A4. Page format only changes how the cards get laid out on the printed sheet — not the size of the art you need to create.
The center of your uploaded art is treated as the real card's spot and is never resized. The 4 corner pieces grow to full 2.6×3.7in for Vault X; the 4 edge pieces grow in only one dimension (the one not shared with the center's row/column) so nothing pulls away from that fixed middle hole.
3 · Upload uncut artwork
5 · Batch mode multiple cards
Upload several master art files at once, name each one, then generate everything for the whole batch in one run — 6 PDFs + 3 listing PNGs + 9 individual Standard/US Letter panels per card, packaged as one zip with a subfolder per card.