The PDF/UA standard defines technical requirements for universally-accessible PDF documents by identifying a set of relevant PDF functions (including text content, images, form fields, comments, bookmarks and metadata) based on ISO 32000-1 (PDF 1.7).
As a quality standard for universally accessible PDF documents aimed at both software developers and document creators, PDF/UA serves as a clear basic requirement for everyone involved in PDF creation.
In principle, universally-accessible PDF documents can either be generated directly during document creation, using a suitable program, or indirectly generated by adapting an existing PDF document.
A PDF documents degree of accessibility is hard to determine at first glance. How, then, can you tell if and to what extent a PDF file meets the requirements of PDF/UA?
So far, there are no PDF programs or assistive technologies which offer full PDF/UA compliance when providing access to tagged PDF documents.
Assistive Technologien, PDF-Programme und das Dateiformat PDF werden durch das PDF/UA-Regelwerk optimal aufeinander abgestimmt, damit möglichst alle Menschen einen technisch gut unterstützten Zugang zu den Inhalten von PDF-Dokumenten erhalten.
PDF/UA defines a standardised, universal set of requirements for PDF accessibility. These guidelines serve as a roadmap for everyone involved with the standard, guaranteeing that the relevant software, hardware and digital documents can work together as effectively as possible provided they comply with the standard.
In 2006, the General Assembly of the United Nations adopted the UN Convention on the Rights of Persons With Disabilities, which came into force on the 3rd of May 2008.
If you want to learn more about PDF technology, either in general or as it relates to a specific subject, then the PDF Association is the perfect point of contact.
Accessibility experts Klaus-Peter Wegge and Markus Riesch report on their first impressions of PDF/UA and assess how it can grow from here.