PDF accessibility remediation planning for public-sector teams

Government CMS asset libraries routinely hold thousands of PDFs — board minutes, forms, transcripts, brochures, archive material spanning years of authoring tools. Trying to certify every PDF is a budget conversation that doesn't end. Triage is the realistic path.

Step 1: Discovery

You can't triage what you can't enumerate. Crawl-driven discovery (what Parity does on every scan) gives you a working inventory of every PDF reachable from public pages. Pair that with a direct asset-library export from the CMS to catch unlinked or archived documents.

Step 2: Structural heuristic triage

For each PDF, capture the cheap signals first:

• Is it tagged? Untagged PDFs are functionally inaccessible to most assistive technology. This is the single largest binary indicator.
• Is the document language set? Missing language breaks screen-reader pronunciation.
• Does it contain images? Image presence flags candidates for alt-text review.
• Does it parse? Corrupt or encrypted-without-password files need attention regardless.

Step 3: Prioritization tiers

Once you have the heuristic signal across every PDF, sort into tiers:

1. Tier 1 — high-traffic, public-service critical. Forms, application materials, current-year board documents, accessibility-related notices. These get full PDF/UA review and remediation.
2. Tier 2 — referenced from public navigation. Documents discoverable from primary navigation get heuristic remediation: tagging, language, alt review of images.
3. Tier 3 — archival, low-traffic. Consider providing accessible alternatives (HTML versions, summary pages) rather than remediating every archived document. Document the alternative-access path.

Step 4: Authoring discipline

Triage is a backstop. The most effective long-term investment is upstream: train authors to export accessible PDFs, build CMS templates that demand the right metadata, and reject documents that fail threshold checks before publication.

The line between heuristic triage and certification

Heuristic triage tells you which documents need attention. It does not confirm a document is conformant to PDF/UA or Matterhorn protocol — that requires a different class of validator and, often, manual review with assistive tech. Treat the two as complementary: triage to drive the worklist, full validation to confirm Tier-1 documents are actually accessible.