At this point the entire document is so riddled with crap it’s a crap sandwich, just like everything connected with the lying usurper in the White House and all his enablers, assistants, supporters and excusers.
If you think the document (actually now there have been two, one white and one green, or maybe there have been three) is not a forgery, nothing and no one can help you.
Most of the complaints I have seen about the document show nothing but the ignorance of the people making them (e.g. the “layers” thing merely shows that the PDF was released in a format which does not permit meaningful forensic examination, but saves considerably on file size versus formats which would; perhaps the goal was to prevent forensic examination, but minimizing the size of what is apt to be a widely-downloaded file is an equally plausible explanation). Some of the complaints would be reasonable grounds for suspicion, and might justify some further investigation, but are hardly dispositive.
As for the “two versions” thing, I don’t think Obama or anyone associated with him is presenting copies of two or more source documents; rather, one of the items produced is an image of the original document (which would most likely have been typed onto a white paper form), printed on a sheet of green security paper, while the other item produced is an image of that same document, printed onto white paper.