PDF files are Adobe's universal format, and usually you need Distiller (on the commercial side) as well as reader to make 'real' PDF documents.  Some of HP's (and likely others) scanners, and multifunction devices will convert scans to PDFs on the fly.

More useless information from Pakled..;)

 

I wish I'd said that.. The Staircase Wit

anahl nathrak uth vas betude doth yel dyenvey..;)