PDF Accessibility Remediation Services
PDF accessibility remediation is the process of adding structure tags, alternative text, logical reading order, table headers, form labels, document language, and bookmarks to PDF files so they can be read and navigated by people using screen readers, keyboard navigation, and other assistive technologies. Without these elements, a PDF is invisible or unusable to assistive technology — even if it looks fine on screen.
CASO Comply automates PDF remediation using AI. The platform processes documents in under a minute, handling OCR for scanned PDFs, structure tagging, contextual alt text generation, reading order correction, and compliance validation against WCAG 2.1 AA, PDF/UA (ISO 14289), and Section 508 standards. Remediation starts at $0.30 per page.
What Gets Fixed
Every remediated document is checked and corrected across these critical accessibility areas, including scanned PDF remediation for image-only documents.
Reading Order
Ensure content is read in the correct sequence by screen readers. A logical reading order means multi-column layouts, sidebars, and callout boxes are interpreted in the intended flow.
Heading Structure
Establish a logical heading hierarchy (H1–H6) so users can navigate efficiently. Properly tagged headings allow screen reader users to skim and jump between sections.
Alt Text
Add descriptive alternative text to images, charts, and diagrams. Level 1 provides basic alt text; Level 2 delivers context-sensitive, document-aware descriptions.
Table Headers
Mark row and column headers so screen readers can associate cells with their headings. Complex tables with merged cells receive advanced tagging.
Form Labels
Associate labels with form fields. For interactive PDF forms, Level 3 adds roles, tab order, required indicators, and validation cues — tested with assistive technology.
Document Language & Metadata
Set the document language attribute and add a descriptive title. Clean up document properties for proper identification.
Bookmarks
Generate bookmarks from the heading structure for quick navigation in longer documents.
Service Tiers
Choose the level of remediation that matches your compliance requirements and document complexity.
Level 1
Standard Accessibility
Best for text-based PDFs, internal archives, and baseline ADA, Section 508, and WCAG 2.1 AA compliance.
- Searchable text layer creation (OCR for scanned documents)
- Automated PDF/UA structure tagging (headings, paragraphs, lists)
- Logical reading order correction
- Basic alt text tagging for images
- Document language and metadata cleanup
- Bookmark generation
- Compliance validation report
- Batch processing support
- Compliance target: 90%+
Level 2
Enhanced Compliance
Guaranteed ≥95% compliance score. Fully automated — client may use AoD Manual Editor for residual edge cases.
- Everything in Level 1
- Contextual, document-aware alt text for every image, chart, and graphic
- AI-verified heading hierarchy
- Complex table header identification and association
- Advanced form tagging
- Configurable bookmarks
- Guaranteed ≥95% compliance score (WCAG 2.1 AA / PDF/UA)
- Detailed compliance report with remediation log
Level 3
Full Remediation
Guaranteed 100% compliance with WCAG 2.1 Level AA, PDF/UA, and Section 508. Built for organizations with zero tolerance for compliance risk.
- Everything in Level 2
- Complete human review and correction of all automated results
- Expert remediation of complex tables, interactive forms, and edge cases
- Guaranteed 100% compliance
- Certificate of Compliance
- Full WCAG & PDF/UA compliance score certification
- Priority processing
- Dedicated account support
- VPAT-supporting compliance documentation (on request)
Volume Pricing
Available for all levels. Contact us for a custom quote →
Standards We Remediate To
Every document we process is validated against the standards that apply to your organization and jurisdiction.
WCAG 2.1 AA
W3C standard. The benchmark required by ADA Title II for state/local government web content.
Section 508
Federal requirement for accessible electronic and information technology. Aligned with WCAG 2.0 AA; many programs target 2.1 AA.
PDF/UA (ISO 14289)
International standard for universally accessible PDFs. Defines how a PDF must be tagged and structured.
HHS Document Accessibility
U.S. Department of Health and Human Services requirements. Follows Section 508 with additional internal policies for healthcare programs, clinical communications, and patient-facing materials.
How It Works
From upload to compliant download in four straightforward steps.
Step 1: Upload
Portal, API, or bulk import. Scanned pages are automatically OCR’d. Encrypted in transit and at rest.
Step 2: AI Analyzes & Remediates
Our AI engine tags structure, corrects reading order, generates alt text, sets metadata, and creates bookmarks.
Step 3: Review & QA
Level 2: client uses AoD Manual Editor for edge cases. Level 3: expert Remediation Analysts perform complete human review.
Step 4: Download
Compliance validation report (Level 1 & 2) or Certificate of Compliance (Level 3). Ready to publish.
Turnaround Times
Processing speed depends on the level of remediation and review required.
| Service Level | Typical Turnaround |
|---|---|
| Level 1 — Standard Accessibility | Under a minute per document |
| Level 2 — Enhanced Compliance | Under a minute per document |
| Level 3 — Full Remediation | 2–5 business days |
Ready to make your documents accessible?
Traditional manual remediation costs $8–$50+ per page. CASO Comply starts at $0.30/page — reducing costs by up to 95%. Need volume? Explore bulk remediation for thousands of documents, or start with an accessibility audit to see where your library stands.