Olaf Drümmer

Founded callas software in 1995 and axaio software in 2006. Working on PDF, color, fonts, Unicode, prepress, accessibility, epublishing. Involved in industry associations and standardization. Chairman of the European Color Initiative, PDF/A Competence Center, VOI Competence Standards and Norms. German PDF expert in ISO TC 130 and ISO TC 171. (Co-) Author of "PostScript- & PDF-Bibel", "PDF/A in a nutshell", "PDF/A kompakt", "PDF/A : l'essentiel", "PDF/A in sintesi", "Introducciòn al PDF/A", "Farbmanagement in DTP-Anwendungen", "Das Standard-Datenformat für die Druckproduktion PDF/X-3", "The standard data format for print production PDF/X-3", "Le format de données standard pour l'impression PDF/X-3".