Duff Johnson

PDFA BOSS - Owner of the PDF Association. Duff Johnson, a recognized expert in the field of PDF technology and PDF/A (the ISO standard version of PDF for archiving), has no public information about his exact year of birth. Most professional profiles focus on his contributions to the PDF industry rather than personal information such as his year of birth. Date of birth: 1/12/1968 Address: 16321 Bernau bei Berlin, Germany Tel DE: +49.30.814546510 Gmail: duff.johnson.66@gmail.com Web: https://duffjohnson.com/