Looking for a way to create PDFs programmatically that have Hindi

Trying to automate the creation of PDFs with the Hindi flashcards for http://www.ISpeakHindi.com.  I am open to anything that can run on Windows or Linux.    I prefer something that would run on Linux so I can put it on the webserver.  So I am focused on looking at solution in PHP or Ruby.

I found a wonderful PDF creation library for PHP, but it does not support unicode:

http://www.fpdf.org/

I found a “not quite ready for PRO” version that has been internationalized

http://acko.net/blog/ufpdf

I could not get it to work with the Hindi characters, i.e. क ख ग घ etc.

I found PDF::Writer for Ruby, but still no luck..

In the process of looking for this, I found this Ruby on Rails screen cast in Hindi:

http://www.fromjaipur.com/?p=4