On May 15th to 17th PDF Days Europe, organized by the PDF Association, took placed again in Berlin. The event, organized for the first time as PDF Technical Conference in 2012 in Basel with less than 60 attendees (mostly developers), was attentended by more than 200 vendors and users this year.
This year the upcoming publication of PDF 2.0 (ISO 32000-2) and a (somewhat vague) preview of next-generation PDF, which is supposed to allow a better use of PDF on mobile devices, were the primary focus of the event. The concept became clearer only at the Hackathon on the third day.
Slides and video recordings are available of most presentations (please allow enough time to load the video previews on the page). There is also a YouTube video posted of my english presentation about the PDFX-ready Online Tools.