The National Security Agency has published a new document from the Information Assurance Directorate on redaction and sanitization. It describes the recommended procedures to redact PDF files using the new Sanitize Document button in Adobe Acrobat X Professional. The document is available here:
http://www.nsa.gov/ia/_files/vtechrep/I73_025R_2011.pdf
Redaction of PDF Files Using Adobe Acrobat Professional X
Enterprise Applications Division of the Systems and Network Analysis Center (SNAC)
Information Assurance Directorate, National Security Agency
