Redax completely redacts (removes) text and graphics from the PDF page. Hacking the file cannot reveal properly redacted information.
Redax is a plug-in for Adobe Acrobat. Created and maintained by the Appligent Document Solutions, Redax software can be purchased for a single user licence or as an enterprise solution for multiple users. A free trail can be downloaded prior to purchase.
Cost and Licencing Options http://shop.appligent.com/?shopp_product=redax
Digital curators handling files that include private information can use this tool to prepare documents for ingest by removing sensitive data (social security numbers, DOB's, addresses etc.) from PDF files at the bit level. Appligent notes special features in Redax that allow for manual specification and selection of redacted content, FOIA exemption codes, workflow automation and batch redaction processing. Text, images, whole pages and multiple pages of documents can be securely removed as well as the document metadata (http://www.appligent.com/desktop-software/redax/).
Available for Windows Operating System (32-bit). Full version of Adobe Acrobat Standard or Professional versions 7-XI are required to use this plug-in.
 Documentation and User Support
The Appligent Document Solutions website provides online user guides and product documentation as well as a Frequently Asked Questions page and customer support information. Customer support can be contacted via email, phone or fax for current licence holders.
 User Experiences
- Redaction Tool Review
- Redacting PDF files: A survey of redacting tools
- External review: providing documents to the OIC
- Analysis of four tools for redaction by Emory Libraries.
 Development Activity
Redax was first released in 1997. The latest version of the plug-in is Redax 5.6. It is maintained by supported by Appligent, Inc.