I use Linux on my desktop, but I got suprised after checking random PDF files on my machines with Virustotal. One of them contained a PDF.Exploit.CVE_2008_2992. So PDF files can have malicious content in them. Question: How can I sterilize a PDF file? I'm thinking of converting a PDF file to a PDF file (maybe remove javascript in them?). 
Sterilize PDF files
security;pdf