There are still many expert document examiners, engineers who's job is software to create and maintain documents, and just plain everyday Americans that have found too many anomalies and inconsistencies to consider this birth certificate authentic. In simple words: there are just too many "digitally adjusted" portions of the document. The document should have zero "digitally enhanced" portion yet the document is covered with unexpected modifications. This document should be a simple 100% scan of the original. It is not a 100% scan of the original. Some document was scanned and then modified with document editing software. Unbelievable, can't even get a valid POTUS' birth certificate from this guy.
source: http://visiontoamerica.org/1847/adobe-engineer-doubts-obama-birth-certificate/