Frequently Asked Questions
Are PDF documents accessible?
A PDF document can be accessible if accessibility has been taken into account when it was produced. The accessibility criteria are similar to ones for HTML pages:
- Well structured content with headings
- Alternative text for images
- Sufficient color contrast
Which validation tool(s) can I use to check for accessibility?
There are a number of automatic validation tools that can provide partial accessibility validation. They can be used for preliminary validation purposes.
However, not all checkpoints can be validated automatically. Furthermore, automated tools sometimes yield incorrect or misleading results.
Once the issues identified with an automated tool are solved, it is imperative to complete the evaluation manually. This site provides a set of validation procedures for content providers, designers and developers.