Graph Paper Printer is exactly that -- a program for printing custom graph paper. It supports Cartesian, Polar, Triangular, and Mercator coordinates, along with custom margins, size, automatic centering, and more. It can also print music paper. You can select from lots of different scale graduation styles, which are available from drop-down picklists, and change the thickness and color of the lines. Graph Paper Printer is easy to use and enables you to produce just about any type of graph paper you would ever need. And best of all -- it's free!