It seems you can just specify the font with the file name. I was unaware that this was possible. The following code will use your font and draws some text on the image:
using (MagickImage image = new MagickImage("einsteinshow.jpg")) { DrawableFont font = new DrawableFont(@"D:\Fonts\DK Crayon Crumble.ttf"); DrawablePointSize size = new DrawablePointSize(72); DrawableStrokeColor strokeColor = new DrawableStrokeColor(new MagickColor("#fff")); DrawableFillColor fillColor = new DrawableFillColor(new MagickColor("#fff")); DrawableText text = new DrawableText(200, 100, "Magick.NET"); image.Draw(font, size, strokeColor, fillColor, text); image.Write("einsteinshow.magick.jpg"); }