Table tagging

For tagging tables, first group the entire table under one tag and then click on (table split) in the right pane. Post that, all cells will be identified as TD(Table Data cell). Use following approach to tag the table depending on complexity :


Simple Table

    Within PDF documents, a table uses the following structure types for table elements:

  • A table element (Table)

  • One or more table row elements(TR) which define each row of table cells as immediate children of the Table element.

  • One or more table header elements (TH) or table data elements (TD) as the immediate children of each table row element.

  • Scope needs to be defined for all header elements(TH) as either Column Scope(Column header) or Row Scope(Row header) depending on the header type. 

  • Cells that span two or more rows or columns should use the RowSpan or ColSpan attribute.

  • For tables that contain blank cells, you may need to add empty TD cells so that each row or column has the same number of cells.


You can also follow the detailed video here :



Complex Table

Tables where one cell can be associated with multiple header cells of sample type needs to be tagged differently from simple tables.

  • All header cells are assigned a header ID by the system automatically.

  • All data cells need to be assigned all the header IDs to which they relate with.