Data Reader

Data Reader is a scientific application that allows you to read the data from a graph and export to an ASCII file for further processing.

For instance, if you have a graph in digital format (e.g. a PDF or equivalent containing a digitized version of a figure or a screen capture of a figure in a publication), you can extract the data using Data Reader to use it in in a spreadsheet by setting the axes, then clicking on the points and exporting.