I am trying flatten a pdf? That is make it so that only information contained in the pdf file is that which is visible.
Note I’m not trying to redact a document. However, this issue may in some manner be relevant to redacting as well. I effectively want the flattened pdf to be as if one printed and scanned the document, yet retains the full resolution of the source.
I have documents which are produced in Pages and consist in multiple layers. It might be something like a background image or form on which I drop commentary, another image, or other information. Most of the time this layering is not visible in Peview. Although if you try to select portions of the document Preview might typically let you highlight the built up components of the page.
However, I have noticed that when displaying in Adobe Acrobat, you frequently get to momentarily see what should in effect not be visible. I have tried the version of pdfPen which comes with Setapp but that did not seem to have flattening in the sense which I need. I believe that exporting the pdf from Preview to a tiff or png would eliminate the layering since that is effectively scanning the document. However, this would either reduce the resolution or result in a very bloated files when converted back to pdf.
Does anyone know of the proper way to achieve the type of flattening I would like?