Observed arrival · 2026-09-20
Ruler, the one-ruler cropper for school portraits
A Mac app that crops school and volume photography by measuring each face from eye midpoint to chin.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- School and volume photographers processing picture-day folders
- Worth noticing
- It measures eye-midpoint to chin and exports 2400 × 3000 images at 300 ppi.
Field notes
The app applies a fixed geometric rule based on eye-midpoint-to-chin distance, while hair, bows, shoulders, and lean affect positioning rather than face size. It separates head, top, three-quarter, and full-length images, stamps crop types as star ratings, and writes a CSV for skipped files. The page says processing occurs on the photographer’s Mac and that originals remain untouched.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue