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Auflistung
Extensions to the formal Arlington PDF Data Model
The Arlington PDF Data Model is an
open-source data model of all PDF objects in the PDF Document Object Model. It is defined as a set of text-based TSV files that use a
predicate syntax to express data integrity requirements as they are expressed in ISO 32000.
Domains:
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- Computing science
- Document engineering
- Formal methods
Formalized grammar for PDF’s graphic operator and operands
Extend the Arlington PDF Data Model with a formal definition of
the PDF content stream operators and operands. See iText pdfcop GitHub repository.
pdfcop currently uses an ANTLR4 grammar but this is not a requirement.
Domains:
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- Computing science
- Document engineering
- Formal methods
Optimization of Brotli compression for PDF by using pre-defined dictionaries
Can custom Brotli dictionaries significantly benefit different kinds of PDF streams (e.g., font programs, ICC profiles, PDF content streams, etc.) beyond the
default Brotli dictionary used for web content?
Domains:
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- Computing science
- Engineering
- Image processing
PDF Days Europe 2025
Article February 19, 2026
Adobe has renewed its Standards Support Endowment for 2026, marking the 8th year of this program.
Page February 13, 2026
Post title with a link Post excerpt Interest areas Resource types Topics Post featured image Featured image is a document … Read more
Resource February 12, 2026
The definitive list of all ISO standards for PDF technology.
Resource February 12, 2026
Current status of the ISO standards development work in the program of work for ISO TC 171 SC 2 and … Read more
Resource February 12, 2026
Resolved errata against industry and ISO PDF-related publications.
Resource February 12, 2026
ISO provides public access to various clauses of ISO publications including the Normative References clause through its Online Browsing Platform, … Read more
Resource February 12, 2026
The PDF Association’s repositories in GitHub. Public repositories welcome contributions and comments from the public. Private repositories are restricted to … Read more
Member News February 12, 2026
Join us in Berlin or online for a full day dedicated to standards, legal requirements, and real-world implementation of accessible … Read more
Article February 12, 2026
PDF’s stakeholders and developers span the globe. Here, we visualize the community’s reach.
Article February 9, 2026
PDF Week Online brings together PDF’s technical community to advance industry projects. All members are welcome to attend!
Member News February 9, 2026
Learn how poorly structured tables impact PDF accessibility, screen reader navigation, and compliance with accessibility standards.
product February 9, 2026
An open-source, MIT-licensed PDF viewer for Svelte and SvelteKit. Choose between a drop-in component with a full UI or headless … Read more
Member News February 9, 2026
UPDF has launched its global #blossomwithupdf social media campaign, encouraging users to share how they enhance reading and note-taking productivity … Read more
Member News February 6, 2026
Learn what a scanned PDF is, why it is inaccessible, and how to convert it into an accessible PDF using … Read more
Page February 4, 2026
What is the U.S. TAG? A U.S. Technical Advisory Group (TAG) provides a mechanism for U.S. experts to participate in … Read more
Member News January 30, 2026
PDFix now offers automated font correction powered by callas software technology, enabling users to fix font issues that cause PDF/UA … Read more
Member News January 30, 2026
callas software gab heute den Start eines neuen Zertifizierungsprogramms bekannt.
Member News January 30, 2026
callas software today announces the launch of a certification program for its software. The program allows experts to certify their … Read more
Event January 30, 2026
This live webinar introduces the Lists of the PDF Association’s Techniques for Accessible PDF, and will be followed by Q&A. … Read more
Event January 30, 2026
This live webinar will discuss ideas for reinventing 3D PDFs. We’ll explore how to make 3D PDFs better, more accessible, … Read more
September 15, 10:00 CET - September 16, 2025Hotel Steglitz International
Albrechtstr. 2, 12165 Berlin, GermanyPDF Days Europe 2025(Teasertext: Join us in Berlin for provocative presentations from the leaders in PDF technology!)PDF here, PDF there…. PDF everywhere!PDF Days Europe 2025 is the second event of the PDF Triathlon in 2025! It’s open to PDF Association members and non-members alike.Back by popular demand, September 2025 will be the first PDF Days Europe event since 2022. As usual, PDF Days Europe presentations are educational in nature (check out the
presentation archive or our
YouTube channel to get a sense of typical topics), with only one commercial slide permitted! They are presented by experts who participate in our technical communities, leaders in the development and application of PDF technology and many who also participate in ISO standards development.No matter your role; whether it be as a PDF or application developer, an integrator, product support, QA, product manager, policy maker, or end user, you’ll find new and relevant information for you at PDF Days Europe. Of course, there will also be lots of time for networking and opportunities to discuss specific solutions with sponsors.The event occurs September 15-16 at the SI Hotel in Berlin. PDF Days Europe tickets will include coffee, snacks and lunch on Monday and Tuesday, and dinner (including a raffle!) on Monday evening. Remote attendance is not offered.
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