That's the only real possibility for outright forgery. But the layering is still a WH creation because HI sent a paper document to the WH, not electronic. Thus the WH scanned the paper and created layers to mess with birthers.
“HI sent a paper document to the WH, not electronic. Thus the WH scanned the paper and created layers to mess with birthers.”
It seems possible to me that the paper document sent by HI did not show Obunghole’s birth in Hawaii. Or, it could have shown a different father. No way he was the son of Barack Obama Sr. with skin that light. The layering could be the result of the WH manipulating the image to show what they wanted it to show.