I haven't seen a free one, bur RegSoft and Fine Print Software advertise on for 29.99.
"pdfFactory products offer a unique approach to PDF creation that is simpler, more effective and less expensive than that offered by other programs.
Create PDF or print to paper: Only pdfFactory allows printing to paper or PDF without printing twice. Acrobat is not needed for printing.
Combines multiple documents into a single PDF: Increases the convenience of document delivery by having a single PDF that contains material from different sources. Just keep printing documents to pdfFactory and they will automatically be combined. "
Try regsoft@reply.digitalriver.com , an email address attached to the add.
moen