Pete,
You can use any font that Windows has available to it, or if you are really desperate define one yourself. The modern software makes things really easy compared to 'how it was'. You can define font size, various enhancements such as bold or italic, give it a curve to align the text to, reverse it as in mirror writing, taper the height from start to finish - all sorts of bells and whistles !
A far cry from my first Calcomp drum plotter driven by CP/M where not only did I have to define the fonts, I had to write the program (a poor mans Autocad),in assembler, so that I cold submit plans drawn on it for my last workshop. It all worked but the planning officer thought I was mad (probably right!) - every rafter and joist was drawn. The building tapered to make the most of the space available, and I kept a constant pitch two facet roof with a sloping ridge so each rafter and joist was different !
Andrew