Erratum: Drago doesn't yet have a direct-to-PDF capability
This is a correction to my last post. Drago has the ability to export directly to Microsoft's RTF format but Gilles hasn't yet coded-in the ability to export to Adobe PDF.
This ability won't be in the upcoming version 2.0 either, but we may see it in later versions as early as March 2006.
RTF competes with PDF in cross-platform document exchanges but the latter is more commonly used these days.
In the meantime, there are several freeware drivers and apps available that you can use to print to PDF.