Actually, it's images like that that make me think the BC's anomalies must just be computer artifacts. The 'R' there is clearly of a piece with the background, while the other letters are separate from it somehow. So if it were a paste-up job, that would have to mean somebody pasted in a bitmap 'R' from one source and merged it with the background, but pasted in other letters from a different source and didn't merge them with the background. The idea that someone would create a document that way is, to me, way more improbable than the idea that the scanning, optimization, and PDF'ing process created some inconsistencies.
The easiest way to paste something is to grab the pixelmap image of the entire word. I'm pretty D@mned certain that the word "Barack" is not likely to be found anywhere in Hawaii's entire database with the exception of Barry's birth certificate if he has one that actually says that. In other words, the word "BARACK" would have to be fabricated by pasting together at least two words. "BARbell" and "attACK" would work, but I doubt they'd find either word in their database either. Just as likely, it might be difficult to find two words with the appropriate components to do it as a two word paste. Most likely it would require pieces of three words.
Modern image software is capable of operating on multiple file formats with multiple documents open at the same time. A non knowledgeable user might not know the difference between a bmp,tif,pdf, or some other proprietary format because the software nowadays makes moving between them appear seamless. Since Hawaii's old stuff has been digitized, probably in multiple stages, it is possible that the database is stored in multiple file formats. In the example, All letters but the "R" are in binary bitmap form with small pixels, while the "R" is in Color with larger pixels.
Now you appear to be arguing that " The 'R' there is clearly of a piece with the background, while the other letters are separate from it somehow." "Somehow" is not much of an explanation. I can think of no reasonable way for the "R" to be converted to Color with larger pixels, and that the rest of the characters would all be binary with smaller pixels, EXCEPT for the explanation I have offered.