I still have not see how txe "layers" were produced on Obama's alleged BC by Adobe Illustrator. The Dems should be able to back engineer txe exact same layers we see by the "optimization" feature in txe Adobe Illustrator on txe same Hawaiian birth certificate form. That has not happened because it's BS.
Some software to create PDF documents from a scan will convert high-contrast black and white parts to bitonal graphics, continuous-tone monochromatic parts to grayscale graphics, and other parts to color graphics. This can be a good thing for a scan that has e.g. a small color photo in the middle of what's otherwise a text document. Software might also notice that certain graphic elements are essentially identical and replace the later instances with references to the first one.
If one had an uncompressed graphics file of a scanned document and it exhibited the anomalies present in the Obama PDF, those anomalies would be substantial evidence of forgery. In a compressed PDF, however, all they show is that the document was not formatted in such a way as to permit meaningful forensic analysis.
Sitting here laughing! :-)
Hm?....Maybe we should do this routinely with all Free Republic posts. Maybe a Post-It note campaign with, “Where's txe REAL birth certificate?”