The problem is that I'd like to block specific documents being written to USB, more specific Adobe PDF files from a Specific Author. The author is defined within the PDF Document properties.
I tried different Removable Storage Protection rules where I look only for a text pattern inside the document, but that didn't work. Also Document properties don't seem to be the right solution as these are just the properties from the file and not the Adobe PDF file.
Is there anyone out there that did this already?