Measure while you move

A precision workspace for the same Measure button in the tiny assistant. It reports live coordinates and dimensions, then lets you nudge or resize the box one source pixel at a time.

Load imageUse 1600 × 900 measurement surfaceReset selection

Precision Measure
Load an image or use the built-in measurement surface.
Then drag anywhere to create a measurement.

cursor —selection —source —

Tip: keep this surface focused while using the keyboard controls. The selection is measured in source pixels, not just the size it happens to be displayed on screen.