Nothing explains the disturbing images on Obamas posted document. Nothing except that the document was electronically created. That explains everything. He posted a computer created document and NOT the scanned photocopy he says he posted. You know a scanned photocopy does not turn in to a computer generated created document simply by the scanning process?
Here is an example National Review put together, showing how a scanning to a pdf will create layers as seen in the obama cert.
http://www.nationalreview.com/corner/265767/pdf-layers-obamas-birth-certificate-nathan-goulding