Tables pose a special challenge for screen readers because they present textual or numerical data to be easily referenced visually. Content within table cells can be complex and might contain lists, paragraphs, form fields, or another table.
The Touch Up Reading Order Table Editor displays the selected table into cells and allows the user to apply additional table markup. The table must be tagged as a table before using TURO’s Table Editor command.
For best results when tagging tables, use the application that created the document to add tags when the PDF is created. If a PDF is not tagged and the source document is not available, add tags by using the Add Tags To Document command in the Accessibility pane. Most tables are properly recognized using this command; however, the command may not recognize a table that lacks clear borders, headings, columns, and rows. Use the Touch Up Reading Order tool to determine if the table has been properly recognized and to correct recognition problems such as missing cells. The Tags panel can also be used to manually tag data table elements.
Use the Table Editor to check and correct table tags. By viewing table tags, determine whether columns, rows, and cells have been correctly identified. Tables that lack well-defined borders and rules are often tagged incorrectly or contain adjacent page elements. It is possible to correct poorly tagged tables by selecting and redefining them; it is possible to split combined cells by creating a tag for each cell.