UA1.DEV

PDF/UA-1 validation for humans & agents.

Drop one PDF file below for instant accessibility validation. Or use the deterministic API in your CI and agent workflows.

Standard: ISO 14289-1 Engine: veraPDF Max file size: 25 MB
Agent Quickstart API Health ClawHub Skill Public Skill Repo

Agent-ready API: Stable JSON schema, compact mode, deterministic error codes, and rate-limit headers.

Drop PDF Here

Drag and release to start validation.

Files are processed for validation and are not stored on our servers.

FAQ

What is PDF/UA-1?

PDF/UA-1 (ISO 14289-1) is the accessibility standard for PDF documents. It helps ensure files are usable with screen readers and assistive technologies.

How do I validate PDF accessibility?

Upload your PDF in the web UI, or call POST /api/validate for automated checks in CI and agent workflows.

PDF/UA-1 vs PDF/UA-2: what is supported?

UA1 is still the most common baseline in enterprise workflows. This service currently validates PDF/UA-1.

Can I automate validation in CI?

Yes. Use /api/validate?format=compact and fail pipelines when verdict is fail.

Is this API agent-friendly?

Yes. Responses are deterministic, include stable error codes, and expose rate-limit headers.

Do I need an account?

No account is required for validation.