Source Sans Pro: An open source Unicode font that works

A new and ambitious font, Source Sans Pro, which has glyphs in the Latin Extended Additional codeblock (required for most Indological publishing in Unicode), was released by Adobe earlier this month.

Why ambitious? Because free, open source, high quality and produced by a stalwart of design in the digital era, all at once. Its letterforms riff on News Gothic, a typeface of enduring appeal. And it comes with an inspiringly comprehensive set of weights, from Extra Light to Black, and true italics. Anyone who knows what a proper font needs to have will know how rare and remarkable this is. Although it’s optimised for user interfaces, I’ve tested it in XeTeX and found that it works superbly. Here’s a snippet of how it looks, from the specimen:

Source Sans Pro Capitals, regular weight (specimen, p.9).

What’s the catch? None other than the fact that just by using it and pulling apart the source, you might be more inclined to contribute to its development. A reason for releasing the font as open source (and hence free) is to demystify the increasingly complicated process of creating multiple-weight Unicode OpenType fonts, thereby encouraging the production and proliferation of fonts that meet contemporary standards. Open source lets all that complexity communally come to light, as Paul D. Hunt (and his commenters) reveal in Adobe’s official announcement of the font.

It’s downloadable from SourceForge.