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Screen-shot of Google Trends search for "PDF".

How do we gain insight into how users’ views of documents are shifting? Google Trends is an increasingly interesting source of high-level marketplace data. By aggregating Google’s search data over time, reporting a term’s popularity as compared with all other searches.

Diagram of the workflow described herein.

The PDF Techniques Accessibility Summit’s objective is to establish a broad-based understanding of how PDF files should be tagged for accessibilty. It’s an opportunity to focus on establishing a common set of examples of accessible PDF content, and identify best-practice when tagging difficult cases.

A pink lemon-slice among yellow slices.

The typical adoption curve for PDF technologies until approximately 2007 tended to track with that of the original PDF developer. Since then the marketplace has shifted; it’s no longer clear that Adobe drivesPDF feature support worldwide. Accordingly, we are happy to report that adoption of PDF 2.0 continues apace, with new vendors announcing their support every month.

Implementing PDF/A-based eIDAS trust services

Bernd WildDr. Bernd Wild, Chairman of intarsys AG, will be hosting a presentation titled “Implementing PDF/A-based eIDAS trust services” at the PDF Days Europe 2018.

Presenter: Dr. Bernd Wild is originally a graduate physicist. After completing his studies, he worked for several years at a computer science research center in the field of artificial intelligence and its possible applications in industrial processes. Upon obtaining his PhD, Dr. Wild was responsible for the organization and management of C/S software development at an IT service provider in the banking sector. Together with some partners, he founded intarsys consulting GmbH in Karlsruhe in 1996. Dr. Wild now concentrates on consulting and providing assistance for complex system integration projects.

Session Description: There have been approaches around to ensure integrity and authenticity of electronic documents and preserving evidence of digitally signed documents. Being mostly on the national level there’s now a European initiative at ETSI to specify the requirements and interfaces of such a longterm preservation service. While this encompasses all types of electronic documents and data the biggest part out there are PDF documents due to the standardised and longterm-stable format. In contrast to introduce a new archival container for this purpose it could be more promising to use the well-established PDF/A-3 standard as container enriched by necessary cryptographic informations like time-stanps, validation information and evidence records. The presentation will show such an approach where PDF/A-3 plays the role as archival container. Use cases in healthcare and banking and finance will be given in order to demonstrate the usability and the advantages of the PDF-based approach.

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