Not only legal requirements demand that repositories, their content and the metadata describing it can also be used barrier-free by people with disabilities. Most repositories today offer web access, for which very good guidelines already exist in the form of the Web Content Accessibility Guidelines. The content itself can be diverse, but often PDF documents are used in a scientific context. Creating them in such a way that they are as accessible as possible requires certain procedures. A good system of metadata forms the base for being able to find content easily in a repository. Metadata must also be designed to be accessible and can in turn describe the accessibility of content.