Scanning the original hard copy then saving as tiff = good
Downloading the pdf (containing compressed image file) then saving as tiff = fail
...just sayin’
Lol. All we’re looking for here (all we can look for) is the artifacts (or lack of them) created by adobe, and of course any other stuff brought in the adobe file. If you fail to understand that, I suggest you go over to Hawaii and request the original paper :)