In September 1999, when the first pure PDF workflow system «Prinergy» was introduced by Heidelberger Druckmaschinen and Creo (now Kodak), four tutorials on PDF Workflow were published, which I had written for the two manufacturers.
The tutorials were distributed in printed form (I still have some copies in my basement) and as digital eBooks (of course interactive PDFs) in German and English for free download. The interest was very big. I stopped updating the statistics after more than one million downloads (from several platforms).
Read more…20 years PDF Workflow