Hi community, I am in the legal field and new to digital forensics. I have a 1 page letter (PDF file) which I need to do some analysis on to verify its authenticity. It’s a MS Print to PDF which was emailed to me online, so the metadata is only showing the time and date that the Print to PDF function was used, and the author is showing as the person who converted it from Print to PDF. I have tried EXIF tool but that only extracts the metadata I have already.
The thing is, I need the old metadata (before the print to pdf function was used), is there a way to obtain that?
Also, I have run the PDF file through Adobe’s PDF Visualizer for Extract (API), and it shows me that the two bottom paragraphs of text are in fact two PNG images, masquerading as text. On a standard image extractor, I was unable to extract those two PNG images, so I believe they are probably raster-based? Is there anyway that these could be extracted, and if so, how do I then go about determining the metadata from those images?
Any help with the file would be greatly appreciated!
Thanks in advance,
Jaz
