Over the years, I've become friends with the team at Smile Software. Smile is a group of incredibly smart people trying to do do right for their customers and the world at large. This is why their latest promotion came as no surprise to me.
Right now, if you buy PDFpen from Smile's website, you'll get 20% off and Smile will donate a copy to your favorite non-profit of choice. They're calling it "Get a Little, Give a Lot." If you haven't bought PDFpen yet, this is your chance to get a deal and help someone out.