That is not an answerable question. You can't determine what was in the forgers mind. Deal with the facts the document presents. It is computer created not a scanned photocopy. The ink signature turns in to a computer created non-ink signature. Right there you can stop your wonderings. It is a forgery. Get past it and let it sink in. The man in the White House is a fraud and a huge number of people with the responsibility to protect us from this usurper have turned a blind eye to it or aided the crime.
And what about the PDF from post 13 in this thread? Y'know, the one that was released the same day, had no layers, and did not have the same pixellation? See this
post from a FR thread shortly after the long form was released, which includes a blow-up of the relevant part of the other PDF. No layers. No mis-matched pixels.