I don’t think Adobe Acrobat was around back then…
Adobe products were certainly available and in use when the forgeries were made ... both the short-form Certification of Live Birth in June 2008 and the long-form Certificate of Live Birth in April 2011. For details on how they were made see the various videos by a graphics expert Dr. Ron Polland, aka Dr. Polarik at: http://www.youtube.com/@TheDrRJP