Adobe Acrobat XI - Manual (Page 444)

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Accessibility, tags, and reflow
Last updated 1/14/2015
Options: Opens the Accessibility Checker Options dialog box, so you can select which checks are performed.
Accessibility issues
Document
Accessibility permission flag
A document author can specify that no part of an accessible PDF is to be copied, printed, extracted, commented on, or
edited. This setting could interfere with a screen reader's ability to read the document, because screen readers must be
able to copy or extract the document's text to convert it to speech.
This flag reports whether it's necessary to turn on the security settings that allow accessibility.
To fix the rule automatically, select Accessibility Permission Flag on the Accessibility Checker panel. Then, choose Fix
from the Options
menu.
Or, fix accessibility permissions manually:
1 Choose File > Properties > Security.
2 Choose No Security from the Security Method pop-up menu.
3 Click OK and close the Document Properties dialog box.
If your assistive technology product is registered with Adobe as a Trusted Agent, you can read PDFs that might be
inaccessible to another assistive technology product. Acrobat recognizes when a screen reader or other product is a
Trusted Agent and overrides security settings that would typically limit access to the content for accessibility purposes.
However, the security settings remain in effect for all other purposes, such as to prevent printing, copying, extracting,
commenting, or editing text.
Note: See the related WCAG section: 1.1.1 Non-text Content. (A), 4.1.2 Name, role, value
Image-only PDF
Reports whether the document contains nontext content that is not accessible. If the document appears to contain text,
but doesn't contain fonts, it could be an image-only PDF file.
To fix this rule check automatically, select Image-only PDF on the Accessibility Checker panel, and choose Fix from the
Options
menu.
Or, to fix this rule check manually, use OCR to recognize text in scanned images:
1 Choose Tools > Recognition > In This File.
2 Select All Pages in the Recognize Text dialog box, and then select OK.
Note: See the related WCAG section: 1.1.1. Non-text content (A)
Tagged PDF
If this rule check fails, the document isn't tagged to specify the correct reading order.
To fix this item automatically, select Tagged PDF on the Accessibility Checker panel, and then choose Fix from the
Options
menu. Acrobat automatically adds tags to the PDF.