Author
Martin Calloway
Document accessibility, PDF structure, and the formats institutions rely on.
Traces a problem to the format that caused it rather than the person who hit it.
Editorial profile
Martin writes about the hidden systems inside documents: tags, reading order, metadata, optical character recognition, archival formats, and the workflows that determine whether information remains usable. The beat follows documents from creation through publication, storage, discovery, and remediation.
Reporting approachThe reporting distinguishes visible appearance from machine-readable structure. Standards and format specifications are translated into checks a real team can perform, with careful attention to what conformance proves and what still requires human judgment.
Evidence standardClaims link to meaningful sources in context. Primary material is preferred, uncertainty is named, and corrections are made plainly.
Coverage
- PDF structure and PDF/UA
- Document accessibility and remediation
- OCR, metadata, and archives
- Document inventory and compliance evidence
Articles
- How to check thousands of PDFs without opening thousands of PDFsSeptember 10, 2026
- A walkthrough for checking your site's PDF complianceSeptember 4, 2026
- The ADA PDF deadline moved. Your city's documents didn't.September 4, 2026
- What PDF/UA actually proves, and what it does notAugust 28, 2026
- Why PDFs Become InaccessibleAugust 14, 2026
- Tagged PDFs ExplainedAugust 1, 2026
Martin Calloway is the byline under which PayperTrail publishes. Every factual claim in these articles is sourced and linked to primary material; where the evidence is thin or contested, the article says so.