cups-pdf: cups-pdf (a PDF printer backend module for CUPS) cups-pdf: cups-pdf: CUPS-PDF is a backend module for CUPS (Common UNIX Printing System) cups-pdf: by Volker C. Behr that, rather than printing to a device, prints cups-pdf: straight to PDF files. cups-pdf: cups-pdf: cups-pdf: cups-pdf: cups-pdf: cups-pdf: