This is the most critical step.

Allows users to manually click and plot specific points on an image.

She installed it, loaded the scanned graph, and within minutes, the yellow crosshair traced the curve. Click, click, click—each point converted to numbers. A few calibrations, and the data exported as a CSV file.

: Users can manually click on points to extract exact X and Y coordinates.

: Works with standard image formats including TIFF, JPEG, BMP, and PCX .

If your hash matches a hash confirmed by Archive.org or MajorGeeks, you are safe.