See the border adjacent to the left edge of the document? Is that embedded in the glass atop the copy machine? It continues along both the top and bottom of the document. The pattern is contiguous and unbroken yet the left edge of the document fades out. Yes, curls away like a document on a copy machine.
You answered your own question. It is a copy of the record on file, it appears they keep their records in booklets hence the fade away towards the binding of the book.
The real question is why did you ask such an innane question?