Very good explanation from @ToddMartin about why some paperless documents have a big white spot --- especially on headers. It has to do with fonts --- or rather fonts that might be missing.
Sage seems to have resolved this in 2014 with PU1 (as Todd notes)
Great job illustrating as well as explaining why this was occurring.
http://www.mbabsi.com/support-blog/support-blog/paperless-pdf-whiteout