# Vivian: PDF and document accessibility remediation at scale

Broken documents go in. Compliant documents come out.

Vivian remediates PDF libraries against WCAG 2.1 AA at scale: structure tags, reading order, alt text, forms, and the audit-ready report your counsel actually asks for. Automated where confidence is high. Human-reviewed where it is not.

Covers ADA Title II, Section 508, Section 504, and WCAG 2.1 AA.

- Try it without an account: upload one PDF (6 MB max) on the homepage at https://tryvivian.pages.dev/ for an instant analysis. The file is not stored.
- Start free: https://tryvivian.pages.dev/signup

## Every other tool checks. Vivian fixes.

Remediating one PDF by hand takes two to four hours. A university sits on a hundred thousand of them. The pipeline runs the math the other way, and every stage leaves evidence.

1. **Parse.** Structure, text, images, and form fields extracted with spatial geometry intact.
2. **Analyze.** Headings, reading order, tables, links, and language inferred; every failure mapped to its WCAG criterion.
3. **Propose.** Type-aware alt text (equations to LaTeX and MathML, charts by trend), each with an honest confidence score.
4. **Gate.** At or above your threshold, fixes auto-apply. Below it, they queue for a human. Never silently.
5. **Remediate.** A machine-verifiable tag tree written into the PDF: MCIDs, roles, alt text, reading order, real tables, repaired fonts.
6. **Report.** An audit-ready report: issue inventory, remediation log, confidence disclosure, version history.

## Confidence-gated, not blindly automated

Every AI decision carries a confidence score. At or above your threshold, the fix is applied and logged. Below it, a reviewer sees the proposal, the score, and the reason, then approves, edits, or rejects. Medical imaging and technical diagrams always go to a human, regardless of score.

- Auto-apply rate and correctness are measured per document class.
- The default confidence gate is 0.85.
- Every decision is scored and disclosed.
- The audit trail is versioned, timestamped, and attributed.

## The deadlines are federal law

The Department of Justice adopted WCAG 2.1 AA as the ADA Title II standard for state and local government content, including PDFs used to access services. HHS mirrors those dates for recipients of federal health funding. Preexisting documents lose their exception the moment someone needs them to apply for or access a service.

| Rule | Standard | Who | Compliance date |
| --- | --- | --- | --- |
| ADA Title II (28 CFR Part 35) | WCAG 2.1 AA | State and local government, population 50,000+ | April 26, 2027 |
| ADA Title II (28 CFR Part 35) | WCAG 2.1 AA | Smaller entities and special districts | April 26, 2028 |
| HHS Section 504 (45 CFR Part 84) | WCAG 2.1 AA | Recipients of HHS funding, 15+ employees | May 11, 2027 |
| Section 508 (36 CFR Part 1194) | WCAG 2.0 AA | Federal agencies | In force |

Dates reflect the 2026 interim final rules extending the original deadlines by one year; those extensions are under legal challenge, so treating earlier readiness as lower risk is prudent.

## Automated analysis. Not legal certification.

Flagged items need your review; complex documents deserve accessibility specialists. This statement is printed on every report Vivian produces:

> This report documents Vivian's automated analysis and remediation. It is not a legal certification of compliance. Organizations should review flagged items and consult accessibility specialists for complex documents.

## More

- [About Vivian](https://tryvivian.pages.dev/about)
- [Contact](https://tryvivian.pages.dev/contact)
- [Privacy policy](https://tryvivian.pages.dev/privacy)
- [Terms of service](https://tryvivian.pages.dev/terms)
- [Accessibility statement](https://tryvivian.pages.dev/accessibility)
- [Guide for AI agents (llms.txt)](https://tryvivian.pages.dev/llms.txt)