That certainly appears to be the real deal.
There is a prominent family in South Australia, who are shown on an extensive ancestry website. One of the items that was part of that data was a birth certificate for a member of that family.
That document was for the birth of David Jeffrey Bomford.
http://www.obamaconspiracy.org/wp-content/uploads/2009/08/bomford.jpg
Some clown downloaded it and tampered with an image of that document. Naturally, Mr Bomford has since removed it from the website.
http://www.bomford.net/birth%20certificate%20david%20jeffrey%20bomford.htm
A birth certificate of David Jeffrey Bomford of Adelaide, South Australia, had been removed permanently from the Bomford family website.