Slight update to the library. When you add a page the density for the Canvas is set to 72. This means you use the DrawText function with the familiar point sizes as used in MS Word etc. If for any reason you want to set a different density there is a new function SetDensity to set the density but you will then have to work out your own scaling.
Also the "WitePDF" method has been spelled correctly so it is now WritePDF. I have updated the sample code above to reflect this and the zip file has been updated.