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Acrobat XI Pro PDF Accessibility Repair Workflow
Checking Read Order with the Touch Up Read Order Tool
The reading order can quickly be checked by using the Touch Up Reading Order tool. It is
possible to 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 adding tags to a PDF.
Reading order issues are readily apparent when using 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. It may be helpful to turn off the option "Display
Like Elements in a Single Box" to change the order of similar elements that appear to be grouped
with one number in the Order. This option can be set using the "Options" menu in the Order
panel.
Within each region, text is ordered left to right and top to bottom. (This order can be changed
in the Touch Up preferences.) If a single highlighted region contains two columns of text or
text that will not 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.
The reading order of the highlighted regions can be changed by moving an item in the Order
panel or by dragging the numbers on the page in the document pane. By reordering highlighted
regions on the page, it is possible to make a figure and caption appear in the reading order at the
specific point that they are referenced in the text. By changing the order of a highlighted region,
the reading order can effectively be changed for an item without changing the actual appearance
of the PDF.
To check the reading order with the Touch Up Reading Order tool:
The page view may be modified by doing any of the following:
•
Select the Touch Up Reading Order tool.
•
In the Touch Up Reading Order dialog box, select Show Page Content Order.
Note:
If highlighted regions do not appear in the document pane, the document does
not contain tags. Tags will need to be added to the document (See "Step 6: Add
Tags to the Document" on page 42).
•
To specify a highlight color, click on one of the color swatches, the small
squares to the right of the check boxes for "Show page content groups",
"Show table cells" and "Show tables and figures." Select the desired color
from the swatch that pops up in the Touch Up Reading Order dialog.
•
To highlight tables and figures, and to view alternate text for figures, select
Show Tables And Figures checkbox.
•
Check the reading order of text within each highlighted region. Zooming in
can make this step easier.
•
It may be necessary to uncheck the display like elements in a single
block checkbox to verify that elements within a single block are
ordered correctly.
•
Check the numbered order of all highlighted regions. If consecutive,
numbered regions don't follow one another, reorder them in the Order
panel.
Adobe® Acrobat® XI Pro Accessibility Guide: Best Practices for PDF Accessibility
57
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