Is My Card Centered
Learning Center
These guides explain the inspection concepts behind the tools on Is My Card Centered? They are written for collectors who want a practical way to think about centering, photo quality, corners, edges, and pre-submission risk without treating any tool output as a guaranteed grade.
Start with the Centering tool when you need ratio measurements, read the Centering Guide for step-by-step tool instructions, use Pre-Screen when you want a guided card-photo checklist, open Card Review for deeper AI-assisted review, and use Gem Finder for PSA population and gem-rate context.
Learn when automatic estimates are useful, when manual guide checks matter, and how photo quality changes measurement confidence.
See how common ratio labels translate into border balance, including examples where one axis is stronger than the other.
Understand why centering can limit upside even when the rest of the card looks clean, and why the same ratio can carry different risk across cards.
Set up photos that make centering, corners, edges, and surface checks easier to review before submitting or buying.
Review frequent risk areas such as whitening, corner softness, edge wear, print lines, dents, and hidden surface marks.
Learn what to look for around corners and edges, including chips, whitening, lifts, rough cuts, and lighting artifacts.
