Adobe Acrobat XI - Manual (Page 447)

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Accessibility, tags, and reflow
Last updated 1/14/2015
• Tag the content by choosing Tools > Accessibility > Touch Up Reading Order. Select the content, and then apply tags
as necessary.
• Assign tags using the Tags panel. (To display the Tags panel, choose View > Show/Hide > Navigation Panes >
Tags.)
To have Acrobat assign tags automatically to annotations as they're created, choose Tag Annotations from the Options
menu on the Tags panel.
Note: See the related WCAG section: 1.3.1 Info and Relationships (Level A), 4.1.2 Name, role, value
Tab order
Because tabs are often used to navigate a PDF, it's necessary that the tab order parallels the document structure.
To fix the tab order automatically, select Tab Order on the Accessibility Checker panel, and choose Fix from the
Options
menu.
To manually fix the tab order for links, form fields, comments, and other annotations:
1 Click the Pages panel on the navigation pane.
2 Click a page thumbnail, and then choose Page Properties from the Options menu.
3 In the Page Properties dialog box, choose Tab Order. Then, select Use Document Structure, and click OK.
4 Repeat these steps for all thumbnails in the document.
Note: See the related WCAG section: 2.4.3, Focus Order (Level A)
Character encoding
Specifying the encoding helps PDF viewers present users with readable text. However, some character-encoding issues
aren't repairable within Acrobat.
To ensure proper encoding, do the following:
• Verify that the necessary fonts are installed on your system.
• Use a different font (preferably OpenType) in the original document, and then re-create the PDF.
• Re-create the PDF file with a newer version of Acrobat Distiller.
• Use the latest Adobe Postscript driver to create the PostScript file, and then re-create the PDF.
Note: The WCAG doesn't address Unicode character mapping.
Tagged multimedia
This rule checks whether all multimedia objects are tagged. Make sure that content is either included in the Tags tree
or marked as an artifact.
Open the Content panel and right-click (Windows) or Ctrl-click (Mac OS) the content that you want to mark as an
artifact. Then, select Create Artifact from the context menu. (To display the Content panel, choose View > Show/Hide
> Navigation Panes > Content.)
Tag the content by choosing Tools > Accessibility > Touch Up Reading Order. Select the content, and then apply tags
as necessary.
Assign tags using the Tags panel. Right-click (Windows) or Ctrl-click (Mac OS) the element in the Tags tree, and
choose Create Tag From Selection. (To display the Tags panel, choose View > Show/Hide > Navigation Panes > Tags.)