" 1. All of the documents are high-quality PDFs generated from original electronic files . . . except for the "Climate Strategy" memo. (Hereinafter, "the memo"). That appears to have been printed out and scanned, though it may also have been faxed.
Either way, why? After they wrote up their Top Secret Here's All the Bad Stuff We're Gonna Do This Year memo, did the author hand it to his secretary and say "Now scan this in for the Board"? Or did he fax it across the hall to his buddy?
This seems a strange and ponderous way to go about it--especially since the other documents illustrate that the Heartland Institute has fully mastered the Print to PDF command.
It is, however, exactly what I would do if I were trying to make sure that the document had no potentially incriminating metadata in the pdf."
There's much more to read and consider at the link.
The author gives two caveats, which are somewhat at odds with one another."