If he was born in Hawaii, the forgery would not have been necessary.
I personally downloaded the PDF of the long-form birth certificate that Obama posted to the WH website. What was posted was purported to be a photocopy of the LFBC. It was not.
I found 11 separate layers Photoshopped together to form one page. This was a manipulated document, created out of different parts to look like one form.
The mistake that was made by the graphics person who created it was that they did not flattened or compress all of the layers they used to generate the forge document into one layer. If they had done that, no one might have been the wiser.
But because they didn't flatten the layered images into on piece, it allowed thousands of graphics professionals to dig inside it and peel away the layers to prove it was fake. Dumb mistake.
That "mistake" might very well have been intentional on the part of the forger in a weak attempt to have people invalidate the document. Unfortunately, the Alinsky types saw to it that those who called its validity into question were ridiculed.