PDFs

The document is scanned but not OCRed: The PDF is image-based and does not contain readable text, preventing screen readers and text-to-speech tools from accessing the content. 

The document does not have a language set: The PDF does not specify a document language, which screen readers need in order to pronounce the text correctly. 

The document is missing a title: The PDF does not include a document title in its properties, making it harder for users of assistive technology to identify the file. 

The document is untagged: The PDF does not contain structural tags, preventing screen readers from properly interpreting the reading order and organization of the content. 

The document has contrast issues: Some text or visual elements in the PDF do not have enough contrast against the background, making them difficult to read. 

The document is malformed: The PDF is damaged or improperly structured, which may prevent it from opening or being read correctly by users and assistive technologies.