I decided to take a few minutes to write a semi-automated routine that would run in “R”, free open-source software that does this sort of thing very well. Please note that the routine has not been updated since it was first written in 2013, however it should still work for Topaz data (.sig) files.
The routine is available, with some restrictions and caveats, to qualified forensic document examiners and interested researchers / academics. If you would like to get a copy of it, please contact me using the form shown below. Please include enough bio information for me to assess your request and I will get back to you.