It seems to me that you posted the exact same request end of last year, and Miguel has already answered it:
http://community.qlik.com/message/170346#170346
Any new informations to add?
I personally wouldn't use QV to automatically generate invoices (i.e. loop over a set of data and create pdfs, then print them out). It's kind of possible, but I think there are better tools out there.
