How to Tag Endnotes for WCAG and PDF/UA Compliance
Question details
The user needs to properly tag endnotes and link them to references to ensure their PDF documents meet WCAG and PDF/UA accessibility standards.
- Product
- PDF Document
- Device & OS
- not provided
- Scenario
- Creating universally accessible PDF documents with proper endnote referencing and navigation.
- Observed behavior
- The user wants to achieve compliant endnote tagging and bidirectional linking between document body references and the actual endnotes.
Whenever possible, format and link your endnotes directly within your source application (such as a word processor or Adobe InDesign) before exporting to PDF. Manually tagging these links inside a PDF editor is highly technical and prone to structural errors.
Link and Tag Endnotes in Your Source Application
The most efficient way to ensure WCAG and PDF/UA compliance is to create bidirectional links for endnotes in your source authoring tool before exporting.
To make endnotes accessible, screen readers require a clear path from the text reference to the endnote, and a path back. Setting this up in your source document automatically generates the correct tag structures upon export.
Highlight the reference number in your document body and insert a hyperlink pointing directly to the corresponding endnote text at the end of the document.
Select the endnote text or number at the end of your document and insert a hyperlink pointing back to the original reference in the text body.
Save or export the document to PDF. Ensure that the specific option to include tags for accessibility (e.g., 'Document structure tags for accessibility') is checked in the export dialog.
Manually Tag Endnotes in an Advanced PDF Editor
If you cannot edit the source document, you must manually create links and structural tags using an advanced PDF editing tool.
Use WPS Office to Prepare WCAG-Compliant Endnotes
WPS Writer allows you to effortlessly insert endnotes, manage document links, and export fully tagged PDFs to meet PDF/UA and WCAG accessibility standards.
- 1. Insert Endnotes automatically: Open your document in WPS Writer, go to the 'References' tab, and click 'Insert Endnote'. This automatically establishes the semantic relationship between the body text and the endnote.
- 2. Format Accessibility Links: Select the inserted reference numbers and apply cross-references or hyperlinks to ensure bidirectional navigation between the text reference and the endnote for screen readers.
- 3. Export to Tagged PDF: Go to 'Menu' > 'Export to PDF'. Click 'Advanced Options', and check the box to include structural tags for accessibility before confirming the export.
Frequently Asked Questions
What does PDF/UA compliance mean for endnotes?
PDF/UA (Universal Accessibility) compliance requires that endnotes and their document body references are properly tagged with <Reference> and <Note> tags. They must also include functional, bidirectional links to allow assistive technologies like screen readers to navigate seamlessly between them.
Why is it difficult to tag endnotes directly in a PDF editor?
Tagging endnotes manually in a PDF editor requires building the tag tree structure by hand. You have to ensure that <Link> tags and object reference (OBJR) attributes are correctly nested within <Reference> and <Note> tags, which is a highly technical process prone to errors.
Does standard PDF export include accessibility tags automatically?
Not always. When exporting from word processors, you must specifically ensure the 'Document structure tags for accessibility' option is checked in the save or export dialog. Without this, the PDF will be 'untagged' and fail WCAG compliance checks.
