Try the TITUS SharePoint Security Suite

Discover why TITUS Security Suite for SharePoint received the 2011 Editors' Best Award from Windows IT Pro Magazine. Complete the form and register to download the trial version of the TITUS SharePoint Security Suite. 

Metadata Security for SharePoint - protects information in SharePoint by automatically applying permissions to sensitive documents and lists based on their metadata. With Metadata Security Claims Edition you can now combine metadata and trusted user claims to control access to content. 

Document Policy Manager for SharePoint - protects information in SharePoint by raising awareness and promoting end user accountability. This product marks Microsoft Office and PDF documents in SharePoint with visual labels/marking and converts documents to Adobe PDF.