CVE-2009-4073
The printing functionality in Microsoft Internet Explorer 8 allows remote attackers to discover a local pathname, and possibly a local username, by reading the dc:title element of a PDF document that was generated from a local web page.
Date published : 2009-11-24
http://www.securityfocus.com/archive/1/508010/100/0/threaded
http://securethoughts.com/2009/11/millions-of-pdf-invisibly-embedded-with-your-internal-disk-paths/