The PDF is hard to read, by an unknown person who seems to have some sort of grudge.
Two other links regarding Zullo and Arpaio on the forged BC. Most important point about this topic are that Zero’s BC IS a forgery, and many different people showed ho it was fake.
https://www.thepostemail.com/2013/07/04/full-length-video-produced-of-cold-case-posse-presentation-at-cspoa/
Full-Length Video Produced of Cold Case Posse Presentation at CSPOA
https://americanfreepress.net/sheriff-joe-obama-birth-certificate-a-forgery/
Sheriff Joe: Obama Birth Certificate a Forgery
Well over a dozen documents sleuths, professional and amateur, had compelling evidence that the BC was a forgery, most before Barry's Bin Laden raid took the BC fraud "below the fold" just four days after Savannah Guthrie and White House Counsel Bob Bauer made their presentations at the White House?
If Zullo had presented before Congress or court, friends of Barry were prepared to figuratively crucify the CCP and birtherism into silence. I read of plans of such things among the Left's discussions in on-line chat forums.
I don't believe the CCP would have been able to effectively come back from such rebuttals to Zullo's poorly considered final claims of forgery.
Your earlier praise of Zullo regarding his BC evidence is therefore quite off the mark.
Some observations:
If someone -had- been born here of citizen parents, they wouldn’t need to have faked a birth document.
A fake document casts both citizenship -and- parentage into question; there’s no way for the person to prove eligibility per the Constitution, and dispel the doubts addressed in Minor vs Happersett.