RE: [docbook-apps] Tool to convert docbook into PDF

I've had a lot of success with eDE:

http://www.e-novative.info/software/ede.php

There's some learning curve, but not much. 

I've been successful with it and if you  talked with my friends and family,
they would tell you: I'm not very smart. So, if I can do it, you can too.

Good luck.