Thanks for the info.
I am able to create PDF documents without any problem.
What I want is to PDF up the contents of an online live store into a catalog.
I am guessing this will be using php and interrogating the database to compile the list of products available, then present them in a PDF format that my customers can download.
I could do this one page at a time but this would be very tedious and would need to be done again as and when products are added or become unavailable.