The nsWare Prototype Plotting with Open Drill Holes app is very easy to use and consists of 3 main functions that easily integrate into the OrCAD® and Allegro® PCB Editor workflows.
The first function sets only one layer to black and adjusts the rest of the display settings accordingly for generating a proper prototype plot to a printer or document.
The second function adjusts all etch layers to black and only displays the layer that is selected.
Combining the app with the nsWare pdf writer allows for easily printing a pdf document where the holes are shown on the etch layers.
After the documentation is created the function restore color and visibility goes back to the settings before the program was run.