Hi Julian,
WPViewPDF Plus seems to do what we need as far as concatenating the PDFs, but I was just wondering if wPDF could do the same job as RTF2PDF. After playing with it, it seems that RTF2PDF handles the RTFs (page breaks/page orientation/images/tables) far better than using RichEdits in combination with wPDF.
I've sent you an email about these products anyway.
Thanks for your help.