The Defence Signals Directorate (DSD) previously examined the redaction functionality in Adobe Acrobat Pro 10 in 2011 to determine if any redacted information could be recovered from PDF documents. This publication provides guidance on the efficacy of redaction facilities within Adobe Acrobat Pro DC 2017 and is intended for information technology and information security professionals within organisations looking to redact sensitive or personal information from PDF documents before releasing them into the public domain or to other third parties. To assist in mitigating this security risk, Adobe Acrobat Pro DC 2017 provides redaction and sanitisation functionality that aims to completely remove undesirable information and other hidden information (e.g. If I can't get this to work, I'm going to have to cancel my trial subscription to Acrobat, because it's useless to me otherwise.There have been numerous cases of security breaches resulting from a failure to effectively redact sensitive or private information from documents prior to release into the public domain. Is there an " eraser" tool I'm missing? Or some other method to select and erase/delete a small portion of a PDF image? I definitely do not want to change the overall dimensions of the image, or affect the rest of the image at all by erasing a portion - just mask the section to white. I can't seem to find a tool anywhere on Acrobat DC that will allow me to select a small section of the PDF image and erase that portion of the image within the selected boundaries, the way I can with Microsoft Paint for example. What I want to do is delete (or at least mask out) a small portion of some of the detail on that scanned document in order to insert new text or make other corrections.
I've just downloaded Acrobat DC and am trying to use it to edit a previously-scanned B&W document (the document is a PDF large-format scan of a sewing pattern - just line drawings and text).
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