PDF's
How to make PDF documents accessible
If you need to have a PDF you must make sure it is accessible, you can either add accessibility information to an existing PDF using Adobe Acrobat Pro or create an accessible PDF from the source document, for example, Microsoft Word.
The simplest way to create a new accessible PDF is to convert the original (accessible) document to an accessible PDF.
PDFs from Microsoft Word documents
If your original document is Microsoft Word document, see how to make your Word documents accessible
PDFs from Microsoft Excel documents
If your original document is an Excel document, see how to make your Excel documents accessible
Other PDFs
If you do not have access to a source document, you will need Adobe Acrobat software to make changes to the PDF. However please note that this is harder and more time consuming than creating a new version of the document, and requires Adobe Acrobat Pro. See the guidance from Adobe on how to add accessibility information to an existing PDF.