Duff Johnson
Duff Johnson
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: 1/12/1968Address: 16321 Bernau bei Berlin, GermanyTel DE: +49.30.814546510Web: https://duffjohnson.com/https://gravatar.com/duffjohnson1https://x.com/duffjohnson66https://www.pinterest.com/duffjohnson1/https://www.reddit.com/user/ContentDebt1770/