of course it was modified, they added a water mark on it so people couldn't use it to scam other people. this is sensitive document which required a lot of work to get the green light to publish it, just to stop people from fudding.
Obviously the URO coin logo didn't exist in 2012 either.
If you run Obama's birth certificate through these things you get the same stuff. Anything which is digitally copied from another digital copy will reveal such anomalies.