MSimon wrote:seedload wrote:chrismb wrote:Well, it's pretty obvious that stamp wasn't made on that background, isn't it!?
White outline is a PDF compression/layer artifact.
Yes, same stamp, obviously. Anyone who would think differently probably has never used a rubber stamp before.
Could you show other examples? It really doesn't look like the stamp was on the document but is rather a computer (possibly with some human help) overlay.
Or to put it another way: the pdf is not a copy of the document.
BTW I have no dog in this fight. I'm going after Obama on other grounds. I don't even blog birther stuff any more.
The same layer argument was used when the short form Obama document was produced. The halo around the lettering was questioned and again it was a PDF artifact. Yes, the PDF is not the document - it is a PDF (compressed) copy of the document. Also questioned was, where are the folds and where is the raised seal. All among the same arguments posted here about the certified copy of the original, scanned to a PDF and distributed.
http://factcheck.org/2008/08/born-in-the-usa/
Funny, the stamp for that one had many more ink distribution problems than the stamp used on the latest certified copy.
Anyway, I know something about digital compression algorithms but not a lot about PDF specifically. All I know about PDF is what I have read on this subject and the fact that it is consistent with what I know about other compression algorithms. That is enough for me.
One wonders why the Obama camp would have such a good fake stamp for the fake short form birth certificate and not just reuse it on the fake long form one? Why throw out the fake stamp and replace it with one that is misspelled with an X? Why use the stamp on the first fake directly, as evidenced by the fact check photos, and then for the long form fake, digitally impose the stamp badly enough to forget to take away some white pixels. No, sorry, sometimes the simple explanation, that this is real, is the right one.
regards
For reference, same white outline on this:
http://upload.wikimedia.org/wikipedia/c ... Hawaii.jpg
and if you go to the fact check site, you see photos of it.