[Zope] PDF on the fly

I want to create PDF versions of a webpage on the fly. It must be possible to use a specific type 1 postscript font file. I installed htmldoc as suggested by Maik Jablonski in his very good howto (http://zope.org/Members/mjablonski/howtoPDF). It works, but it doesn't support stylesheets. I cannot figure out how to add a new font. I installed ReportLab and it works too. What I don't know and didn't find in the documentation of ReportLab is: - can I use ReportLab to CONVERT to pdf instead of CREATING pdf? - is there an easy way (as with htmldoc) to do this?