WCAG or PDF/UA: what’s the difference

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 differences. In particular, we suggest parts of PDF/UA-1, which are not a part of WCAG … Read more

Open source implementation of PDF/UA validation

We demonstrate the extension of veraPDF framework for validating syntax of PDF/UA-1 and Tagged PDF including formal list of checks, test corpus development and visualization of the reports. Additionally, we discuss ambiguous requirements of both PDF/UA-1 and Matterhorn protocol and their suggested resolutions. Finally, we touch broader challenges such as implementation of Human checks and … Read more