Just looking at the PDF properties shows it was created from Mac OS X 10.6.7 Quartz PDFContext. I had to install an older Adobe Illustrator CS2 (CS5 kinda confusing) just to see it myself clearly, it's blatantly FAKE!
Oh who was that unarmed guy they executed inside the compound? May be he created fake birth certificate? :-)
I posted that days ago and it is easily viewable if you open the .pdf with a text editor like VIM. Initially I unzipped the file put out from the WH (the one with the green security paper background) using PDFTK utility. But you don't even have to do that with the right editor, just open the file.
Now, the black and white version put out by AP made from the printed handout (the one without the security paper background) was made by a totally different process. It is a RDF type .pdf. There is a bit more info about who created it there, all out in the open. Neither of these documents have "text" that was OCR recovered, both are graphic type .pdf files. There is a limited amount of text in both of the files, but that text related to how it was created and indicates what type of software did it.