In order for a PDF document to be technically accessible, the PDF/UA identifier (metadata) must be set.Continue reading "PDF/UA identifier is missing"
In the document properties of the PDF you can define whether the document is displayed with the file name or the document title. This appears in the window title bar of Acrobat (Reader) as well as AT uses this kind of information.Continue reading "Document title isn’t set"
To ensure that the structure made with headings can always be understood, the heading levels mustn’t be skipped. This means <H1> mustn’t be followed directly by <H3>. However, after a <H3> another <H1> can follow, because a new chapter begins for example.Continue reading "Skipped heading levels"
If an undefined or ordered list is used it needs to be tagged as list as well. The list tags will be automatically generated while exporting as PDF. However, you have to use the correct list tools in Microsoft Word or Adobe InDesign.Continue reading "List is not tagged as list"
When manually tagging or marking artifacts within Acrobat, content may suddenly become invisible. It seems that something has been deleted. In reality, however, there has been a movement in the display order. The corresponding content was not deleted, but is hidden behind another object.Continue reading "Incorrect display order makes contents disappear"