Adobe Acrobat XI - Manual (Page 458)

451
Accessibility, tags, and reflow
Last updated 1/14/2015
Display Like Elements In A Single Block Adjacent squares with the same tag type are collapsed into a single, bigger
square with the common tag type that encompasses the original square.
Show Tables And Figures Outlines each table and figure with a crossed-out box. The box also indicates whether the
element includes alternate text. Specify the box color by clicking the color swatch.
Clear Page Structure Removes the tagging structure from the page. Use this option to start over and create a new
structure if the existing structure contains too many problems.
Show Order Panel Opens the Order tab for reordering highlighted content.
Edit Alternate Text Available in the menu that appears when you right-click a highlighted figure. Allows the user to add
or edit a text description about the figure properties that a screen reader or other assistive technology reads.
Edit Form Field Text Available in the menu that appears when you right-click a form field. Allows the user to add or
edit a form field text description that a screen reader or other assistive technology reads.
Edit Table Summary Available in the menu that appears when you right-click a highlighted table. Allows the user to
add or edit a text description about the table properties that a screen reader or other assistive technology reads.
Check and correct reading order (Acrobat Pro)
You can quickly check the reading order of tagged PDFs by using the Touch Up Reading Order tool. You can also use
this tool to add alternate text to images and correct many types of tagging problems that are outlined in the report that
Acrobat generates when you add tags to a PDF.
Reading-order problems are readily apparent when you use the Touch Up Reading Order tool. Each section of
contiguous page content appears as a separate highlighted region and is numbered according to its placement in the
reading order. Within each region, text is ordered left to right and top to bottom. (You can change this order in the
Touch Up preferences.) If a single highlighted region contains two columns of text or text that won’t flow normally,
divide the region into parts that can be reordered. Because highlighted regions are rectangular, they may overlap
somewhat, especially if their page content is irregularly shaped. Unless page content overlaps or is contained within two
highlighted regions, no reading order problem is indicated. Page content should belong to no more than one
highlighted region.
You can change the reading order of the highlighted regions by moving an item in the Order panel or by dragging it on
the page in the document pane. By reordering highlighted regions on the page, you can make a figure and caption read
at the specific point that they are referenced in the text. By changing the order of a highlighted region, you effectively
change the reading order of that item without changing the actual appearance of the PDF.
Check reading order with the Touch Up Reading Order tool
1 Select the Touch Up Reading Order tool.
2 In the Touch Up Reading Order dialog box, select Show Page Content Groups, and then click Page Content Order.
Note: If highlighted regions don’t appear in the document pane, the document doesn’t contain tags.
3 Optionally, do any of the following:
• To specify a highlight color, click the color swatch, and then click the color you want.
• To highlight tables and figures, and to view alternate text for figures, select Show Tables And Figures.
4 Check the reading order of text within each highlighted region.
Zooming in can make this step easier.