Advice on which issues can be solved automatically is available in online Help. To fix issues automatically: click Fix. Online help also provides more guidance for manually resolving issues.
1-1 Is the accessibility permission flag set?
An author can specify in the Security ribbon that a PDF cannot be copied, printed, commented or edited. Content extraction can also be prohibited. This condition could interfere with a screen reader’s ability to read the document out loud. This test checks that the option 'Accessibility access' has been set to ‘Allowed’. This means the prohibition for extraction does not apply to screen readers.
Solution: Go to Security > Security > Settings > Modify. In the Security Method drop-down list select Password Security and click Settings. In the Permissions area select the checkmark Allow accessibility.
1-2 Does the document contain a text layer?
Image-only PDF files cannot be accessed by screen readers because they have no text layer. Some PDF files may be partly accessible, but could have image-only pages or parts. A PDF with a text layer might still be inaccessible if it uses non-standard character encoding or does not have embedded fonts and no usable font can be found in the computer system.
Solution: Go to Home > Convert > Make PDF Searchable.
1-3 Has all content been tagged?
Successful access to a PDF may depend on suitable document tagging. Tagging defines a correct reading order for elements and also identifies content types, such as body text blocks, headings, images, tables, annotations and multimedia objects.
Solution: Open the Tag panel and click the Tag PDF tool.
1-4 Does the document have a suitable reading order?
Verify this rule check manually. Make sure that the reading order displayed in the Tag panel coincides with the logical reading order of the document.
1-5 Is the primary language for the document correctly set?
Screen readers need to know which language they are reading. A primary language should be set for the PDF.
1-6 Does the document name appear in the title bar?
The Document file name or title should appear in the Application title bar.
Solution: Go to File > Info > Description and double-click the title Properties. Initial View you can set whether the file name or document title should appear in the application title bar. All PDF files must have a file name, but often a title is missing. At the same location open the tab Description and enter a title.
1-7 Does the document have bookmarks?
This check is applied to files with 21 or more pages; such documents must have a logical bookmark structure that summarizes the document structure.
Solution: See Bookmarks panel.
1-8 Does the document have suitable color contrast?
People who are color-blind need their documents to have contrasting colors. To solve this issue, make sure that the document’s content adheres to the guidelines outlined in WCAG section 1.4.3. Or, include a recommendation that the PDF viewer use high-contrast colors.