Card Centering Tool

Drop in a photo, line the guides up with the card edges and the inner border, and read the exact centering split.

Drop a card photo here

…or paste from the clipboard, or pick a file. Shoot the card square-on, filling the frame.

Your photo is measured in your browser and never uploaded.

How to measure

  1. Photograph the card flat and square-on, with the whole card in shot. Any angle you shoot at is an angle the measurement inherits.
  2. Straighten first. The guides are square to the screen, so a tilted photo reads as bad centering. Nudge the slider until a card edge runs parallel to the guide beside it — the magnifier makes the last fraction of a degree visible.
  3. Drag the Card edge guide onto the four cut edges of the card. If the photo is already cropped to the card, hit Card fills photo.
  4. Drag the Inner border guide onto the inside edge of the printed border — the same feature on all four sides.
  5. Read the split. 55/45 means one border takes 55% of the two opposing borders combined.