Common use cases include:
You have a PNG file of a scatter plot from a 1998 PDF. You need the exact (X,Y) coordinates to re-plot in Excel. getdata graph digitizer for mac
All digitizers (GetData, Engauge, WebPlotDigitizer) achieve similar accuracy : Common use cases include: You have a PNG
Sub-pixel accuracy (typically <1% error) if the original graph is clear and axes are properly calibrated. getdata graph digitizer for mac
GetData’s advantage historically was batch processing, but Engauge’s CLI + Python now surpasses it for automation.