Use the TouchUp Reading Order tool to make sure that tables are tagged correctly. If you need to structure figures and text within the cells of your table, you may prefer to re-create the table in the authoring application before you convert it as an accessible PDF. Adding tags on a cell level in Acrobat is a labor-intensive procedure.
Before you make any changes to table elements, use the TouchUp Reading Order tool to determine that the table is tagged correctly.
Check table elementsTable Rows, each of which contains Table Header <TH> or Table Data <TD> cells.
<THead>, <TBody>, and <TFoot> sections, each of which contains Table Rows. (The Table Rows contain <TH> cells, <TD> cells, or both.)
If the tag for the table doesn’t contain these elements, but rows, columns, and cells appear in the table in the document pane, use the TouchUp Reading Order tool to select and define the table or individual cells.
If the table contains rows that span two or more columns, set ColSpan and RowSpan attributes for these rows in the tag structure.
Re-create the table in the authoring application, and then convert it to a tagged PDF.
Set ColSpan and RowSpan attributes