The software must understand the relationship between pixels on your screen and the mathematical units of the graph. Click the button. Select four points on the graph axis: two on the X-axis ( Xmincap X sub m i n end-sub Xmaxcap X sub m a x end-sub ) and two on the Y-axis ( Ymincap Y sub m i n end-sub Ymaxcap Y sub m a x end-sub

If you or your institution already purchased a license for GetData Graph Digitizer, using a portable version of the may be permissible for personal convenience. However, distributing or downloading a cracked portable version is illegal in most jurisdictions.

If budget constraints prevent purchasing a commercial license, excellent free and open-source digitizing tools offer comparable or superior features:

: Select the Line Auto-Trace tool. Click a starting point on a continuous line, and the software will follow the path to plot points automatically.

For "noisy" or complex graphs where automatic tracing fails, users can manually click points to define the data path.

Use the magnifying glass tool to ensure you are clicking the exact center of a data point or line.

Use the "Auto trace line" tool. Click a starting point on a solid line, and the software will follow the path, automatically generating coordinates until the line ends. 5. Export the Results