Note the backwards printed text at the bottom edge...
If that is as you say, and I cannot see it very clearly, then that simply proves what we are looking at is the REVERSE of the document, not a graphic of the FRONT showing that the 'seal' is 'bleeding through'
Date stamp as appears on the reverse of the document, bottom letters on document REVERSED.
I’m truly sorry if I insulted you, Fred, that was certainly not my intent.
The person analyzing the birth certificate image has enhanced and reversed an area of that image in order to make it easier to read whatever detail is visible bleeding through the document.
I am afraid I must be completely misunderstanding whatever it is you are trying to say about that image.