Documents in PDF format need to be viewed using external programmes other than web browsers. Therefore, it is necessary to ensure that these types of documents, which have their own interface, remain usable. For example, it has to be possible to handle them independently on any type of device, and they must be compatible with support products such as screen readers.
The accessibility aspects discussed in PDF documents are generally geared towards the visually impaired. However, some people also have hearing, motor or cognitive difficulties, which will be reduced if we apply accessibility and design criteria to everything that is created or adapted.
