AI-Powered • 14 WCAG Checks • PDF/UA

PDF Accessibility Checker

Upload any PDF and instantly check for accessibility issues. AI-powered analysis with WCAG and PDF/UA compliance checks

PDF/UA Compliant

AI Fix Suggestions

14 Accessibility Checks

Drag & Drop Upload

2 Credits per Analysis

New users get 100 free credits

PDF Accessibility Checker

Upload a PDF to check for accessibility issues. We analyze document structure, metadata, text content, images, and navigation against WCAG and PDF/UA standards.

Drop a PDF here or click to upload

PDF files up to 10MB. Analysis costs 2 credits.

Sign In Required

Please sign in to use the PDF Accessibility Checker. Each scan costs 2 credits.

Document Structure Analysis

Tags, Headings & Forms

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

Text, Fonts & Images

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 Fix Suggestions

GPT-4o 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

Follow these guidelines to ensure your PDFs are accessible from the start

Use heading styles in your source document

Add alt text to all images before exporting

Set the document title and language

Use lists and tables properly (not fake formatting)

Export as tagged PDF

Test with a screen reader after export

Read our complete guide to PDF accessibility

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.