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ABOUT PRESENTATIONS

PDF industry presentations

The PDF Association hosts a library of recordings of educational presentations by members and guest speakers at industry events. This collection, now including downloadable slide decks in many cases, is now accessible from pdfa.org.

All presentations are posted as received from the speaker. The PDF Association does not take responsibility for presentation content, comments by attendees or the speakers’ downloadable PDF files.

FEATURED PRESENTATION

Peter Wyatt
The future: re-imagining the best possible definition of PDF

We can and must do better if PDF is to remain reliable, portable, and relevant – and thus grow into the future for all its stakeholders. And now, we have that chance…

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Next Generation Forms for PDF
Progress Report for the Forms Technical Working Group
John Brinkman at PDF Days Europe 2022 ( 2022, Sep )
Forms

This session will present a summary of the progress of the forms technical working group. PDF forms require updates in several areas: Better accessibility Support for reflow Reduced reliance on JavaScript Modernization of the technology stack The presentation will elaborate … Read more

Working together at PDF Days Europe 2022; picture of John Brinkman


What’s stopping PDF from ubiquitous acceptance?
How the inclusion of explicit information will empower the PDF standard
Shawn Gaither at PDF Days Europe 2022 ( 2022, Sep )
PDF community

PDFs have been around for nearly 30 years now and the very ability to ensure perfect representation of graphic content has led the PDF format to become a very powerful ISO standard.  The comprehensive specification of fonts, device-independent colorspaces, transparency, … Read more

Working together at PDF Days Europe 2022; picture of Shawn Gaither


PDF in Variable Data Printing
Challenges when creating and processing individualized PDF in customer communications
Dietrich von Seggern at PDF Days Europe 2022 ( 2022, Sep )
Print

In the concept of omni channel marketing, print is one channel amongst others in customer communication. Individualized print requires not only high speed printing machines – it also means that PDFs have to be processed (ripped) as quickly as these … Read more

Working together at PDF Days Europe 2022; picture of Dietrich von Seggern


Tagged and Accessible PDF with LaTeX
The current state of the project, existing achievements, and plans for future
Frank Mittelbach at PDF Days Europe 2022 ( 2022, Sep )
Accessibility

In Summer 2020 the LaTeX Project Team announced the start of a multi-year project [1, 2] to produce tagged and accessible PDF from existing  LaTeX sources with no or only minimal configuration adjustments. In this talk we describe the current … Read more

Working together at PDF Days Europe 2022; picture of Frank Mittlebach


New Clay
A deep dive into the fun parts of PDF
Joris Schellekens at PDF Days Europe 2022 ( 2022, Sep )
Creation

We all know PDF from daily life. If you were to ask a room full of people whether they’ve come into contact with a PDF document, all would raise their hand. From invoices, receipts, to lab-results (keeping it current for … Read more

Working together at PDF Days Europe 2022; picture of Joris Schellekens


Implementing a PDF Library in Ruby
Design and implementation decisions to create a fully-featured, fast and memory-efficient PDF library
Thomas Leitner at PDF Days Europe 2022 ( 2022, Sep )
PDF community

HexaPDF (https://hexapdf.gettalong.org) is a PDF library written in Ruby. It aims to provide the full spectrum of PDF functionality with the exception of rendering. This presentation focuses on how HexaPDF implements the PDF specification and how Ruby is actually quite … Read more

Working together at PDF Days Europe 2022; picture of Thomas Leitner


Ideas for interoperable self-updating PDF documents
Matthias Valvekens at PDF Days Europe 2022 ( 2022, Sep )
Creation

One criticism that is commonly levelled at PDF is that when looking at a PDF document, the user generally has no easy way of knowing whether the document they’re looking at is current or not. While this isn’t an issue … Read more

Working together at PDF Days Europe 2022; picture of Matthias Valvekens


Putting a squeeze on your PDF
Techniques to reduce PDF file size and the impact on document content
Maksim Bezrukov at PDF Days Europe 2022 ( 2022, Sep )
Optimization

There are many ways and tools to make a PDF. However, sometimes the resulting document may take up significantly more disk space than you would expect based on its content. It therefore makes sense to try to reduce the size … Read more

Working together at PDF Days Europe 2022; picture of Maksim Bezrukov


The PDF Detectives
The dynamically typed duo is on the case!
Michael Demey, Kevin Willems at PDF Days Europe 2022 ( 2022, Sep )
PDF community

PDF is one of the most used document formats in the world! This is a fact we should all be proud of. But the downside of this is that PDF files in all their glory and elegance can also be … Read more

Working together at PDF Days Europe 2022; picture of Michael Demey


Strategies for Testing PDF Files
AssertThat(pdfFile)
Michael Demey at PDF Days Europe 2022 ( 2022, Sep )
PDF community

A staple in the toolbox of the Software Engineer is a solid test suite. Unit tests, Integration tests, and System tests are just a selection out of the vocabulary used on a daily basis. As PDF developers we also have … Read more

Working together at PDF Days Europe 2022; picture of Michael Demey


Deformed table restoration in scanned PDF
Best practice: Better table reconstruction results for scanned PDFs or pictures under complex scenes.
Xiong Longfei at PDF Days Europe 2022 ( 2022, Sep )
Creation

As one of the most common data-representation formats, the table has taken a significant place in documents because of its capability of representing the wealth of information. However, in reality, a vast of tables are published in an uneditable format … Read more

Working together at PDF Days Europe 2022; picture of Xiong Longfei


The Ghent Workgroup 2022 specifications
How much trouble are you in?
David van Driessche at PDF Days Europe 2022 ( 2022, Sep )
Print

The specifications of the Ghent Workgroup – built on top of the ISO PDF/X standards – are followed across the world and are built into a lot of major graphics arts applications. The Ghent Workgroup last released a major specification … Read more

Working together at PDF Days Europe 2022; picture of David van Driessche


On the security of PDF Signatures
On the security of PDF Signatures
Dr. Vladislav Mladenov, Simon Rohlmann at PDF Days Europe 2022 ( 2022, Sep )
Security Digital signatures

Assumed to be secure for 15 years, our talk reveals what could go wrong while a PDF document is being verified. We elaborated novel attacks leading to critical vulnerabilities in all PDF viewers, most notably in Adobe, Foxit, and LibreOffice. … Read more

Working together at PDF Days Europe 2022; picture of Dr. Mladenov and Herr. Rohlmann


Interoperable document-based signatures
Experiences from designing and implementing truly interoperable electronic signature workflows
Roman Toda at PDF Days Europe 2022 ( 2022, Sep )
Digital signatures

This presentation is primarily aimed at developers who are designing and implementing digital document workflows requiring trusted signature models. Electronic signatures are an essential part of digital transformation, and many vendors offer e-sign features. Vendor-specific implementations don’t usually allow interoperability, … Read more

Working together at PDF Days Europe 2022; picture of Roman Toda


Making digital signatures in PDF more usable
New approaches in enhancing digital signatures in PDF
Bernd Wild at PDF Days Europe 2022 ( 2022, Sep )
Digital signatures

Digital signatures have been an integral part of the PDF specification since version PDF 1.3. No other document format has such a deep integration of signatures. Well over 90 percent of all signed documents are PDF. This presentation shows the … Read more

Working together at PDF Days Europe 2022; picture of Bernd Wild


Executive Briefing
Updates, future plans and Q&A with the PDF Association CEO and CTO
Duff Johnson at PDF Days Europe 2021 ( 2021, Sep )
PDF community

Join CEO Duff Johnson and CTO Peter Wyatt as they discuss current and future PDF Association initiatives. Intended primarily for members, this session is also open to non-members.



Making sense of PDF structures in the wild at scale
Building a file observatory to support secure parser development
Tim Allison at PDF Days Europe 2021 ( 2021, Sep )
Security Document management

PDFs in the wild offer a bewildering amount of variation in syntax, features and structure.  For those building parsers or evaluating parsers, it is critical to have a broad coverage corpus available to assess and discover distributions of issues “in … Read more



PDF/UA und Office – Aktueller Stand
Microsoft und Libre Office - PDF Export
Dirk Frölich at PDF Days Europe 2021 ( 2021, Sep )
Accessibility

Was hat sich seit den letzten PDF Days beim PDF-Export mit Bordmitteln von Microsoft Office oder LibreOffice getan? Die Erstellung von vollständig barrierefreien PDF-Dokumente nach PDF/UA-Standard ist nach wie vor nicht möglich und erfordert eine Nachbereitung. Aber von Jahr zu … Read more



PDF/A Conversion and Validation Challenges
This presentation will discuss some of the challenges in PDF to PDF/A conversion and PDF/A validation and how to overcome them.
Elodie Tellier at PDF Days Europe 2021 ( 2021, Sep )
Archiving

We will examine how specific problems are handled in these (not so) similar processes. Sometimes PDF/A validation can be more complex than PDF/A conversion, and in other cases, is it the other way around. What makes a document difficult to … Read more



WCAG or PDF/UA: what’s the difference
Gap analysis and challenges in validation
Boris Doubrov at PDF Days Europe 2021 ( 2021, Sep )
Accessibility

At the moment WCAG validation is a legal requirement, while PDF/UA is not (unfortunately). In this talk we make an attempt to perform a gap analysis between these standards, taking PDF/UA-1 and Matterhorn 1.1 protocol as a basis and analyzing the … Read more

WCAG or PDF/UA: what's the difference