Infix Pro PDF Editor can be used to reliably redact text of a sensitive nature. A block of text can be rendered illegible to the extent that it’s original content no longer forms part of the page marking stream.

Any text you redact will also be redacted within the document’s meta-data. This includes any bookmarks or text within comments as well as hidden, non-user accessible meta-data.

  1. Using the Text tool (Text Tool Button), select the span of text to be redacted. 
    This can be anything from a single word to an entire story.
  2. The choose Text->Redact 
    or press Ctrl+Shift+R
    or choose Toolbars->Redact and press Redact Text  (Redact Text tool button) on the tool-bar
  3. The selected text will be obscured by a solid box. 
    This is the way the text will appear when the PDF is opened in any other PDF viewer.
  4. You can undo this change whilst editing, but once you save the document the redaction becomes permanent and can not be undone.
  5. To change the colour of future redactions or to add a label to the redacted text choose Text->Redact Style... See Redaction style