I found your software thread from the "wanting modellers info" thread. I'm an engineer and a ship modeler and have had this issue a number of times (i.e. having a PDF or other file of a vessel and wanting to put it in Rhino - my software of choice) but there is no good options out there that I have found. I recently bought a Chinese laser cutter/engraver and was hoping some day to be able to cut model parts out just as you are describing. So your software here is a good time saving thing for me as it will replace a lot of manual work.
Unfortunately I have not been able to get any real results from it. To test it, I made a simple drawing (2D) of a box, a circle and an ellipse and then printed them out as PDF files (see attached) in both a raster and vector output. I also printed it to a printer and then re-scanned it back in as a PDF. I then tried to do the conversions and only the vector output PDF did anything and that is missing the square and the circle and Ellipse are skewed. These were done for both the T2Lmode and the BCLmode with the same results.
What have I missed?