12 slides.-- Presentation provides background for demos by Michał Olczyk on "Manual annotation of PDF documents: why is it important and how difficult it is" and by Antoni Marek on "WCAG AI: making PDF documents accessible using Artificial Intelligence".-- Link to session recording available at https://eurocris.org/news Event webpage available at https://live.sages.pl/eurocris-webinar The presentation addresses the issue of web accessibility and WCAG compliance both for web pages and for documents. It is argued that the process to ensure accessibility of web pages or systems is simpler as a rule than the same objective for documents with a wide range of formats, creators and provenances. The Polish Platform of Medical Research (PPM) is shown as an example repository. A demo is provided for the largely automated AI-mediated routine to comply with the WCAG based on the "WCAG AI: Artificial Intelligence in the task of making documents accessible" research project co-financed by the European Union from the European Regional Development Fund under the Intelligent Development Operational Programme.