![](https://secure.gravatar.com/avatar/5c401f4b636bc9557c9c7a87cab025f8.jpg?s=120&d=mm&r=g)
1 Feb
2015
1 Feb
'15
12:58 a.m.
A sample 1-page PDF by Adobe with over 500 metadata visible under "Properties" "Additional Metadata" "Advanced" http://cryptome.org/adobe-acrobat-xi-scan-paper-to-pdf-and-apply-ocr-tutoria... Acrobat needed to see the Additional Metadata, Reader does not show. Curious 464 metadata under "xmpMM:History (bag container)". And many more hidden but perusable with text scrutiny of the PDF.