The image a PDF shows is under control by us. Not you. Again, no.
Is there a way to make a PDF appear with an image icon (instead of just the generic red and white PDF icon)? More importantly, can I make that icon universal so anyone who opens it, on any computer, see the same image icon I've created?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic