Observed arrival · 2026-10-14
PostcardPreflight puts postal rules on the proof
A postcard artwork checker that says it marks up address-side files against USPS layout and size rules before printing.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Postcard designers, print shops, and mailers
- Worth noticing
- The clear-zone check measures the bottom 5/8 inch by the right 4-3/4 inches; the page labels other checks AI-judged.
Field notes
The listed checks mix measured geometry with AI-judged placement: the barcode clear zone and address OCR area are marked measured, while indicia placement is AI-judged. The page accepts PDFs for exact-inch measurements as well as PNG and JPG, and names First-Class, Marketing Mail, and EDDM among its options. It also provides a sample API request for submitting an image URL.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
⊠LoginAccess appeared gated
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
◎NicheUnusually specific use
One card from the complete issue