Remember that this gang has been known to doctor images in the past. It fits a consistent pattern to make Obama appear to be something he is not. That kind of thing lends itself to questioning the authenticity of everything they put out, tin foil or not.
Anyone with even a minimal amount of Photoshop training can demonstrate exactly how the lazy application of the Photoshop tool caused this.
He's wearing a big puffy jacket, which is bloused out more than normal. I think that's why he looks bigger than he is.