Matterhorn Protocol PDF checker
Run a local preflight mapped to the main Matterhorn/PDF/UA failure areas, with human-review items called out.
- Maps findings to structural, metadata, content, semantic, and review areas
- Separates machine failures from human-review checks
- Useful for Section 508 and PDF/UA remediation triage
- Runs locally in the browser and exports JSON
How to matterhorn pdf checker
- Upload a PDF.
- Review the Matterhorn-style failure areas and human-review flags.
- Use the findings to decide whether to fix source, remediate tags, or request manual review.
Frequently asked questions
Is this the full Matterhorn Protocol?
No. Matterhorn has many detailed checks, including conditions that require human judgment. This page is a local preflight that highlights the major failure areas and marks judgment calls explicitly.
Why are some findings marked human review?
Reading order, alt-text quality, table meaning, and form instructions cannot be proven from syntax alone. They need reviewer or screen-reader validation.
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