Government agencies publish PDFs, forms, reports, policies and other digital documents that people rely on to access public information and services. When these documents are not accessible, people with disabilities may be unable to read their content, navigate their structure or complete essential tasks using assistive technologies.
Section 508 of the Rehabilitation Act establishes accessibility requirements for electronic and information technology covered by the law. For federal agencies, this includes applicable digital documents and other electronic content.
This article explains the types of government documents that need attention, how to prioritise and remediate them, and how to check their accessibility before publication. It also explores how document remediation tools can support agencies managing large volumes of files.
What Does Section 508 Compliance Mean for Government Documents?
What are the Types of Section 508-Compliant Government Documents?
- Electronic Documents: PDFs, Word files, Excel sheets, and PowerPoint presentations must be properly tagged for screen readers.
- Website Content: Any text, image, or downloadable file posted on official government portals must be accessible.
- Online Training Materials: E-learning modules, slide decks, and video-based training must have captions, transcripts, and navigable structures.
- Multimedia Content: Videos, podcasts, and recorded briefings must include captions, audio descriptions, or transcripts.
- Email Messages: Emails should follow accessible formatting with meaningful links and alt text for images.
- Social Media Posts: Posts should include alt text, captions, and accessible hashtags to maximize reach.
- Online Forms: Digital forms must have properly labeled fields and logical tab order.
- Employment Application Pages: Applicants with disabilities should be able to navigate forms and portals without barriers.
- Scanned Documents: Legacy paper-based PDFs must be converted into machine-readable text with OCR.
From day-to-day correspondence to policy reports, every digital artifact in government workflows has accessibility implications.
508-Compliant PDF Checklist: What to Check
A PDF that meets applicable Section 508 accessibility requirements must make its information and functionality accessible to people with disabilities, including people who use screen readers or keyboard navigation. Use this checklist to identify common accessibility issues before publishing a PDF.
PDF tags: Confirm that the document has a meaningful tag structure for headings, paragraphs, lists, tables and other content.
Reading order: Check that content follows a logical order when read by assistive technology.
Headings and structure: Use appropriate heading tags and correctly structured lists to help users navigate the document.
Alternative text: Provide meaningful alternative text for informative images, charts and diagrams. Mark decorative images appropriately.
Tables: Check that tables use appropriate header and data-cell tags so relationships between cells can be understood.
Links and forms: Ensure links have meaningful names and interactive form fields can be identified and operated accessibly.
Document title and language: Set a descriptive document title and specify the primary language.
Colour contrast: Check that text has sufficient contrast against its background and that colour alone does not convey essential information.
Scanned content: If the PDF contains scanned pages, ensure the text is recognised accurately and the resulting document has a proper accessible structure.
Final testing: Run an automated accessibility check, inspect the document manually and perform appropriate keyboard and assistive-technology testing.
Passing an automated checker is a useful starting point, but it does not guarantee that a PDF is fully accessible or conforms to every applicable requirement. The document must also be reviewed for issues that automated tools cannot reliably assess.
How to Remediate 508-Compliant Government Documents?
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Organize Your Documents
Start by gathering all your digital files, PDFs, Word, Excel, PowerPoint, and scanned images. Create a list with document type, location, department owner, and format. Then prioritize:
- Public-facing documents like voter guides and notices.
- Content required by law.
- Frequently accessed resources (analytics or FOIA logs help identify these).
This ensures high-impact files are addressed first, making compliance more strategic and manageable.
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Add Tagging, Alt Text & Logical Reading Order
Once files are prioritized, the process of remediation begins.
- Tag structural elements, like headings, lists, tables, and links, so that assistive technologies can interpret the content.Organizations remediating large document volumes can automate this process using the autotagging apis, which generates semantic document structure and tags at scale.
- Add descriptive but concise alt text for meaningful images, while marking decorative ones as artifacts.
- Always establish a logical reading order, especially in multi-column layouts or complex tables.
Read More Here: How to Write 508 Compliant Documents
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Apply OCR to Scanned Content
Scanned PDFs are essentially pictures of text and are unreadable by screen readers. Applying OCR ensures these are converted into machine-readable, accessible files. Tools like PREP by Continual Engine automate this process at scale, handling thousands of scanned files with accuracy.
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Add Metadata & Set Document Language
Accessibility doesn’t stop at visible content. Behind-the-scenes information, like document title, language, author, subject, and date, ensures screen readers announce content correctly. For longer documents, generally more than 20 pages, add bookmarks to improve navigation. These details may seem minor, but they make a big difference in the user experience.
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Validate Using Accessibility Tools
After remediation, test files with government document accessibility tools to ensure compliance. Automated checkers identify errors such as missing tags or unlabeled form fields. Human testing with screen readers adds an additional layer of assurance.
How to Check a PDF for Section 508 Compliance
Checking a PDF for Section 508 accessibility involves more than running an automated checker. A reliable review combines automated testing, manual inspection and, where appropriate, testing with assistive technology.
Step 1: Run an Automated Accessibility Check
Use an appropriate PDF accessibility checker, such as the accessibility tools in Adobe Acrobat Pro, to identify detectable problems. These may include missing tags, document-property issues and certain structural errors.
Review the results and correct the identified issues. Remember that a successful automated check does not establish full accessibility.
Step 2: Inspect Tags and Reading Order
Review the PDF’s tag structure to confirm that headings, paragraphs, lists, figures and tables are tagged appropriately. Check that the reading order follows the intended flow of the content, particularly in documents with multiple columns, sidebars or complex layouts.
Step 3: Review Images, Tables, Links and Forms
Check whether meaningful images have appropriate alternative text, tables expose their header relationships, links communicate their purpose and form fields have accessible names and logical keyboard navigation.
Also inspect colour contrast and verify that important information is not conveyed by colour alone.
Step 4: Check Document Properties and Language
Confirm that the PDF has a descriptive title and the correct primary language. Where sections use a different language, check whether their language has been identified appropriately.
Step 5: Test the Document’s Usability
Use keyboard navigation and appropriate screen-reader testing to check whether users can move through the document, understand its structure and access its content and functionality.
Step 6: Correct, Retest and Record the Results
Fix the issues found during testing, repeat the relevant checks and retain a record of the reviewed document version and results. If the document changes later, reassess it as needed.
The key takeaway: Automated tools help identify accessibility issues, but manual inspection and appropriate usability testing are necessary to assess problems that automated checks may miss.
How PREP Helps With Section 508 Compliance for Government Documents?
- Auto-tag content
- Add alt text
- Correct reading order
- Apply OCR with high accuracy
Struggling With Section 508 Compliance?
Key Takeaways
- Section 508 ensures all government digital documents are accessible to people with disabilities.
- Critical document types include PDFs, websites, training materials, multimedia, emails, social media, forms, and scanned content.
- The remediation process involves organizing files, adding tags/alt text, applying OCR, including metadata, and validating accessibility.
- AI-powered tools like PREP accelerate compliance, reduce manual workload, and help agencies meet federal accessibility standards efficiently.
