Preparation: Place a standard letter-sized (8.5" × 11") sheet of paper in the area you want to scan, ensuring it's flat and clearly visible in your photo.
Upload your image using the button below. The paper must be clearly visible in the image.
In Measure Mode, draw a rectangle around the paper to set the scale.
Click on points in your image to create measurements. Each pair of clicks creates a measurement.
Switch to Edit Mode to adjust points or corners if needed.
Use Reset to start over with the same image.
Use the Zoom (+/-) Buttons in Edit Mode to zoom in/out for more precise measurements.
Mobile: In Edit Mode, when zoomed in, drag with one finger to pan the image. Scrollbars are visible for navigation.