PDF's have been known to have exploits and IIRC how mobile treats downloaded pages (HTML) in a web sandbox, IIRC PDF's need to be downloaded to the device to vi

PDF's have been known to have exploits and IIRC how mobile treats downloaded pages (HTML) in a web sandbox, IIRC PDF's need to be downloaded to the device to view. Resulting it being a larger security risk than a web page: See this for some known exploits: http://www.malwaretracker.com/pdfthreat.php http://www.malwaretracker.com/pdfthreat.php