There are 11 benefits of this global accessibility standard for PDF documents.
Global Standard for PDF Accessibility
ISO Standard 14289: PDF for Universal Access - PDF/UA
- Defines based on PDF features and functions what requirements an accessible PDF has to fulfill in order to be technically accessible
- In 2012, the first version of PDF/UA was approved and published by ISO
- Current version: ISO 14289-1:2014-12
- The free PDF/UA evaluation tool available is PDF Accessibility Checker (PAC)
Benefits of PDF/UA
PDF/UA is an important step forward for PDF accessibility. Only an international standard will make it possible for authoring software, validation tools, browsers and assistive technology such as screen readers to accept the required technical specifications. PDF/UA creates a clear set of requirements which both software developers and PDF creators can use. And finally, this international standard gives a reference for legislators around the world.
Understanding PDF Accessibility Requirements
Between Validity and Compliancy
PDF accessibility requirements can be seen as a four-layer pyramid. Every layer builds on the previous layers:
- Level 1: PDF
- Level 2: PDF/UA
- Level 3: WCAG
- Level 4: Usability