PDF Accessibility Checker
Upload a PDF to inspect detectable accessibility signals. AI-assisted analysis with automated WCAG and PDF/UA-oriented checks
PDF accessibility scan workspace
PDF Accessibility Checker
Drop a PDF here or click to upload
PDF files up to 10MB. Analysis costs 2 credits.
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Document Structure Analysis
Checks for tagged PDF, heading hierarchy (H1-H6), paragraph structure, table headers, and form field labels. Verifies MarkInfo and StructTreeRoot in the PDF catalog.
Content & Font Checks
Validates extractable text content, font embedding, Unicode character mapping (ToUnicode), and image alt text. Catches scanned-image PDFs without OCR.
AI-Powered Remediation
GPT-4o mini analyzes your results and provides plain-language explanations of each issue, prioritized fix suggestions, and a step-by-step remediation plan.
How It Works
Upload a PDF and get a detailed accessibility report in seconds
Upload PDF
Drag and drop or browse to upload any PDF file up to 10MB in size.
14-Point Analysis
Our tool checks 14 accessibility criteria including tags, headings, alt text, bookmarks, fonts, and forms.
AI Report
Get a detailed score with AI-generated explanations and prioritized fix suggestions.
How To Create Accessible PDFs
Frequently Asked Questions
What does the PDF Accessibility Checker test?▾
Our tool checks 12 accessibility criteria including: tagged PDF structure, document title, language setting, heading hierarchy, image alt text, bookmarks/navigation, font embedding, Unicode mapping, form field labels, table structure, and readable text content.
What is a tagged PDF?▾
A tagged PDF contains structural markup (tags) that describe the document's logical structure — headings, paragraphs, lists, tables, and images. Screen readers use these tags to navigate and read the document. An untagged PDF is largely inaccessible.
What is PDF/UA?▾
PDF/UA (Universal Accessibility) is the ISO 14289 standard for accessible PDF documents. It defines requirements for tagged structure, alt text, reading order, and metadata. Meeting PDF/UA is considered best practice for PDF accessibility.
How do I make a PDF accessible?▾
Start by creating the source document with proper heading structure and alt text. Use the built-in accessibility features of your authoring tool (Word, InDesign, etc.) to add tags, set the language, and add bookmarks. Run the accessibility checker before exporting. Then validate the exported PDF.
Does this tool check scanned PDFs?▾
Yes. If a PDF contains only scanned images with no extractable text, our tool will flag it as inaccessible. Scanned PDFs need OCR (Optical Character Recognition) processing to make the text readable by screen readers.
How much does it cost?▾
Each PDF analysis costs 2 credits. New accounts receive free credits to get started. The analysis includes both automated rule-based checks and AI-powered plain-language explanations with fix suggestions.
Essential Accessibility Resources
Comprehensive tools, checklists, and guides to help you create inclusive digital experiences