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PDF/UA · WCAG 2.2 · Matterhorn · 6 Jurisdictions

Scan your PDF for accessibility

Upload any PDF and get 161 automated checks — WCAG 2.2 + PDF/UA (ISO 14289-1) + Matterhorn Protocol — mapped to your country's legal framework. AI explanations, visual preview with clickable issue markers, and fix guidance for Acrobat, Word, InDesign and LibreOffice. Under 30 seconds.

161 checks 106 PDF/UA rules 18 Matterhorn checkpoints VeraPDF engine
AI explanations Visual preview + markers <30s results 6 jurisdictions Screen Reader preview

The most comprehensive online PDF accessibility scanner — PDF/UA + WCAG + Matterhorn + 6 legal frameworks in one scan

Beta v1.2
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What you get

Three engines. One report. Every detail.

Your PDF is validated by 55 custom detections and 106 VeraPDF ISO rules, then enriched with AI analysis — all in a single scan.

VeraPDF ISO 14289-1

The reference PDF/UA validation engine used by professional audit firms. 106 machine-checked rules across 21 categories, with fix hints for every failure.

  • PDF/UA-1
  • 21 categories
  • Fix hints

AI-Powered Explanations

Every issue, every PDF/UA failure, every manual review item gets a plain-English AI explanation with a fix guide — tailored to your jurisdiction and authoring tool.

  • 3 explain types
  • Jurisdiction-aware
  • AI Summary

6 Legal Jurisdictions

Pick your country and get reports mapped to the real law — Australian DDA, US ADA + Section 508, EU EAA, Canadian AODA, UK Equality Act, or Global WCAG + PDF/UA baseline.

  • AU DDA
  • US 508
  • EU EAA
  • CA AODA
  • UK EqA
  • Global

Fix-Tool Guidance

PDF issues come with step-by-step fix instructions for your authoring tool — not generic advice. Select Acrobat Pro, Word, InDesign, or LibreOffice and get targeted steps.

  • Acrobat Pro
  • Word
  • InDesign
  • LibreOffice

Visual Preview & PDF Report

See every issue pinpointed on your PDF with clickable markers. Export a branded, accessible PDF report with severity-weighted scores, AI summaries, and PDF/UA results — ready for auditors.

  • Issue markers
  • Severity scoring
  • PDF export

Screen Reader Preview

Hear your PDF the way a screen reader does. The built-in simulation uses Web Speech API to read through the tag structure, exposing missing alt text, broken reading order, and unlabelled form fields — before you publish.

  • NVDA / JAWS / VoiceOver
  • Web Speech API
  • Reading order check

Simple pricing. No subscription.

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Credits work across all WCAGHub tools — PDF, Web, and Document Checker. No expiry. View all plans

What We Check

Every PDF scan runs 161 automated accessibility checks — 55 WCAG & Matterhorn detections plus 106 PDF/UA (ISO 14289-1) rules via VeraPDF — covering document structure, content, tables, forms, and visual compliance.

0 Checks
Tagged PDF1.3.1A
Document Title2.4.2A
Document Language3.1.1A
No Copy Restriction—BP
Reading Order1.3.2A
Document Bookmarks2.4.5AA
List Structure1.3.1A
Artifacts Marked1.3.1A
Language Spans3.1.2AA
Header/Footer Artifacts1.3.1A
No JavaScript Actions—A
Annotations Accessible1.3.1A
Role MappingMatterhorn1.3.1A
Math FormulasMatterhorn1.3.1A
Hidden Text as ArtifactMatterhorn1.3.1A
No Nested AnnotationsMatterhorn1.3.1A
Optional Content LayersMatterhorn1.3.1A
Watermarks as ArtifactsMatterhorn1.3.1A
Content Inside TagsMatterhorn1.3.1A
XMP Metadata SyncMatterhorn—BP
Metadata Complete—BP
PDF Version—A
Embedded Files—A
Footnotes TaggedMatterhorn1.3.1A
PDF/UA IdentifierMatterhorn—BP
Image Alt Text1.1.1A
Text Extractable1.4.5AA
Image-Only PDF1.1.1A
Link Text2.4.4A
Figure Captions1.1.1A
Empty Alt Text1.1.1A
Consistent Spacing1.4.12AA
Valid Link DestinationsMatterhorn2.4.4A
Alt Text QualityMatterhorn1.1.1A
Figure Bounding BoxMatterhorn1.1.1A
Ruby AnnotationsMatterhorn3.1.6AAA
Alt vs CaptionMatterhorn1.1.1A
Form Field Labels1.3.1A
No XFA FormsMatterhorn—A
Table Headers1.3.1A
Table Structure1.3.1A
Duplicate Form Fields4.1.2A
Table Captions1.3.1A
Header Scope1.3.1A
Header IDs1.3.1A
Spanning Cells1.3.1A
Heading Hierarchy1.3.1A
Heading Nesting1.3.1A
Tab Order2.4.3A
TOC Linked2.4.5AA
Annotation Tab OrderMatterhorn2.4.3A
Logical Page NumbersMatterhorn2.4.8AAA
Color Contrast1.4.3AA
Font Embedding1.4.5AA
Unicode MappingMatterhorn4.1.1A
Document Structure (Clauses 6–7.1) — 21 rulesISOPDF/UA
Text & Language (Clause 7.2) — 18 rulesISOPDF/UA
Graphics & Images (Clause 7.3) — 4 rulesISOPDF/UA
Headings & Tables (Clauses 7.4–7.5) — 12 rulesISOPDF/UA
Lists & Notes (Clauses 7.6–7.10) — 14 rulesISOPDF/UA
Annotations & Forms (Clauses 7.15–7.18) — 26 rulesISOPDF/UA
Digital Signatures & Security (Clauses 7.20–7.21) — 11 rulesISOPDF/UA
9 Critical
37 Warning
9 Info
106 PDF/UA
A42 AA7 AAA2 BP4 PDF/UA106

Roadmap

161 checks live. AI-powered analysis. PDF/UA validation. Here's what's next.

  1. Delivered

    Deep Scan + PDF/UA

    55 WCAG checks + 106 ISO 14289-1 rules via VeraPDF

    • 55 detections across 11 categories
    • 18 Matterhorn Protocol checkpoints
    • 106 PDF/UA rules with fix hints
    • AI Explain on issues, PDF/UA rules & manual checks
    • AI Summary with priority fix list
    • Tool-specific fix guides (Acrobat, Word, InDesign)
    • Visual Preview with issue badges
    • PDF Report with PDF/UA validation page
  2. Coming Soon

    Batch Upload

    Scan up to 10 PDFs in one go

    • Upload multiple PDFs at once
    • Parallel analysis with progress tracking
    • Combined summary report across all files
    • Bulk PDF Report download
  3. In Development

    AI Alt Text

    AI-generated alternative text for every image

    • Vision AI analyses each image in your PDF
    • Generates descriptive alt text suggestions
    • One-click copy for each suggestion
    • Context-aware — considers surrounding text
  4. Planned

    Screen Reader Preview

    Hear how your PDF sounds to assistive technology

    • Text-to-speech playback of reading order
    • Visual highlight follows narration in real time
    • Spot reading order issues instantly
    • Compare visual layout vs reading sequence