Position yourself at the end of the pallet so every sheet edge is visible as a thin horizontal line.
✗ Top-face photos won't work
✓ Edge-on corner photos work best
The stack edge should fill at least half the frame height. Too far = sheets too small. Too close = stack cut off.
Crouch so the camera is at mid-stack height. Sheet edges should appear as horizontal lines, not diagonal.
Warehouse overhead lighting is fine. Avoid shadows falling across the sheet edges. Don't shoot into direct sunlight.
Take 2 photos: top half and bottom half of the stack edge. The app will let you add both counts together.
Green lines show detected sheets. Tap the photo to add missed lines. Long-press a line to remove false ones. Use − / + buttons to fine-tune.