DocuWare does not do redaction. Sure you can add overlays that appear to be redaction, but those overlays can be turned on or off by the user.
To truly redact a document, you must add an overlay that obscures the area in question, and then merge the layer with the document to make the layer a permanent part of the document. Since this will only be possible with PDF type documents this may or may not be a solution.
Senior Director Support Americas