Adding a header to a PDF print job?

I have to print a few dozen PDFs, each of which have between ten and one hundred pages each. The problem is, none of them actually reference their source, so when my boss reads them next to each other and piles them together, he has no way of knowing which ones came from which PDF. Is there a way I can add a "header" to the top of each page of a printed PDF, much like how when I add page numbers to a print job they go in the "footer"?

I'm running Windows 7 and printing a PDF from Firefox. If it allows for more customizable print jobs I can print the PDF from Adobe Reader. Thanks for your help!

Reply 1 : Adding a header to a PDF print job?

Look at the options given at http://www.pdfill.com/pdf_tools_free.html