GR, you either have been absent on the threads links and copied material with experts proving beyond all doubt that it’s a forgery; in which case you should study up to learn something.
Or you’re here to support Zero for reasons known only to yourself.
There is no third choice; unless you’re just a regular idiot that likes to disrupt solely for the fun of it.
I've posted the original scan (the one with the blue background not the certified copy with the green background) multiple times and challenged anybody to reproduce the graphical inconsistencies on that version.
So far no one's been able to do it.
You're welcome to take a crack at it though:
http://abcnews.go.com/images/Politics/ap_obama_certificate_dm_110427.pdf
Everyone in the conspiracy theory crowd has been analyzing the certified copy with the green background. The artifacts, aliasing, and layers are a byproduct of a document being scanned into an optimized PDF. National Review even replicated the effect.