Tagged PDF

PDF/UA identifier missing

Actual Text - Alt Text - Expansion Text - Contents Key

Document structure element found which is not a root element

Structure element used as root element

Standard structure type is remapped

Dealing with Form XObjects

Link annotation is not nested inside a link structure element

Figure element on a single page with no bounding box

Tab order entry in page with annotations not set to S

Header and footer artifacts

ID missing in note structure element

Irregular table (missing cell)

Object not tagged

Alternative description missing for an annotation