Fox has been showing clips of Obama's Oprah segment he taped today. I can't remember his exact words, the gist though is that this was created especially for Obama. Whatever department released this does not normally release them in this"digital" fashion. Which could explain a lot of these otherwise strange placed images.
Make sense, see above. There's a scan placed or printed onto a background. They could do this to make further manipulation more difficult.
They also could be referring to getting an electronic file to the WH very quickly - all done digitally. The date on this is April 26.