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Neat, I love what this Digg user wrote about PDFpad! – “Use it to plan your next project submission to MAKE magazine. Stumbled on this one at work. Allows you to print 7 types of graph paper in the comfort of your home home (Cartesian, Logarithmic, Engineering, Polar, Isometric, Hexagonal(for you AD&D folks), Probability) with further ability to choose paper size, metric/English units.” [via] – Link.

Related:
Make Graph Paper and Grid Paper – Link.