PDF to WCAG Compliant HTML and PDF Converter
Convert PDF documents to clean, semantic HTML using AI
Privacy note: Your PDF content is sent to Google's Gemini AI for processing. No data is stored on our servers. For sensitive documents, review Google's AI data handling policies.
Upload a PDF file
Drag & drop or click to browse. Max 30 pages.
Semantic HTML5
Generates clean HTML using proper semantic elements like header, main, section, article, and more.
AI-Powered
Uses Google Gemini to understand document layout, tables, lists, and structure — not just raw text extraction.
Download & Use
Preview the converted HTML instantly and download it as a ready-to-use .html file.
Why Make PDFs Accessible?
Over 80% of PDFs on the web are inaccessible to people who rely on assistive technologies. Converting PDFs to semantic HTML is one of the most effective ways to remediate accessibility barriers.
Legal Compliance
WCAG 2.2, Section 508, ADA, and the European Accessibility Act all require digital documents to be accessible. Inaccessible PDFs put organizations at legal risk.
Inclusive Access
Over 1 billion people worldwide live with a disability. Semantic HTML works natively with screen readers, keyboard navigation, and other assistive technologies.
Better SEO & Reach
Search engines cannot index content locked inside PDFs as effectively as HTML. Converting to semantic HTML makes your content discoverable, searchable, and shareable.
How It Works
Upload Your PDF
Drag and drop or click to upload. Your PDF is parsed directly in your browser using PDF.js — no server upload needed for this step.
AI Analyzes Structure
Google Gemini AI examines both the extracted text and page images to understand headings, tables, lists, and the visual layout of your document.
Get Accessible HTML
Download semantic HTML5 with proper heading hierarchy, accessible tables, structured lists, and responsive CSS — ready for the web.
PDF Accessibility Problems This Tool Solves
Most PDFs lack the semantic structure that assistive technologies depend on. Converting to HTML addresses these common barriers.
Missing Heading Hierarchy
PDFs often have styled text that looks like headings but has no semantic meaning. The converter generates proper h1-h6 elements that screen readers can navigate.
No Semantic Structure
Flat PDF content gets transformed into HTML5 semantic elements — header, main, section, article, nav — giving the document meaning that machines and assistive tech can interpret.
Inaccessible Tables
PDF tables are often just positioned text. The AI reconstructs them as proper HTML tables with thead, tbody, and th elements so screen readers can announce row and column headers.
Broken Reading Order
Multi-column PDFs often have garbled reading order for screen readers. The HTML output follows a logical DOM order that matches the intended visual flow of the document.
No Image Descriptions
Images in PDFs rarely have alt text. The converter uses figure and figcaption elements as placeholders, making it easy to add meaningful descriptions afterward.
Not Screen Reader Friendly
Untagged PDFs are essentially invisible to screen readers. Semantic HTML works natively with JAWS, NVDA, VoiceOver, and TalkBack without requiring any plugins.
Common Use Cases
Organizations across industries use PDF-to-HTML conversion to meet compliance requirements and reach wider audiences.
Compliance Remediation
Meet Section 508, ADA, and WCAG 2.2 requirements by converting existing PDF documents into accessible HTML alternatives.
Reports & Whitepapers
Transform PDF reports, research papers, and whitepapers into web-accessible HTML that can be indexed by search engines and read by anyone.
Manuals & Documentation
Convert technical manuals, user guides, and product documentation to searchable, mobile-friendly HTML pages.
Government & Education
Government agencies and educational institutions can make public-facing PDF documents accessible to all citizens and students.
Digital Archiving
Archive legacy PDF documents as web content that is future-proof, searchable, and accessible without special software.
Legacy Document Conversion
Bring old, inaccessible PDF documents up to modern standards by converting them to semantic HTML that meets current accessibility guidelines.
Frequently Asked Questions
How does the PDF to HTML conversion work?
The tool uses a hybrid approach. First, it extracts text and renders page images from your PDF directly in your browser using PDF.js. Then, both the text and images are sent to Google's Gemini AI, which understands the visual layout and content to produce clean, semantic HTML with proper headings, tables, lists, and structure.
What types of PDFs work best?
Text-based PDFs with clear structure (headings, paragraphs, tables, lists) produce the best results. Documents like reports, articles, manuals, and datasheets convert well. Scanned documents with low image quality or heavily designed PDFs with complex layouts may produce less accurate results.
Is my PDF data kept private?
Your PDF is processed in your browser first, and then content is sent to Google's Gemini AI for conversion. We do not store your PDF or the generated HTML on our servers. However, Google processes the data according to their AI data handling policies. Avoid uploading highly sensitive or confidential documents.
What is the maximum PDF size supported?
The converter supports PDFs with up to 30 pages. For larger documents, consider splitting them into smaller parts before converting. There is no strict file size limit, but very large files may take longer to process.
What kind of HTML does it generate?
The output is clean, semantic HTML5 with a minimal embedded stylesheet. It uses proper elements like headings (h1-h6), paragraphs, lists, tables with thead/tbody, sections, and more. The styling is basic and responsive — a readable font, comfortable spacing, and a centered container that looks good on any screen.
Can I edit the generated HTML?
Yes! You can copy the HTML code and paste it into any text editor or code editor for further customization. The generated HTML is clean and well-formatted, making it easy to modify the structure, styling, or content as needed.
How does converting PDF to HTML improve accessibility?
Most PDFs lack the semantic tags that assistive technologies rely on. Screen readers, for example, depend on heading hierarchy, table structure, and reading order to convey content to users. By converting a PDF to semantic HTML5 with proper elements like h1-h6, table/thead/th, lists, and landmarks, the content becomes navigable and understandable for people using screen readers, keyboard-only navigation, and other assistive tools. HTML is inherently more accessible than PDF because browsers and assistive technologies have native, well-tested support for it.
Does the output meet WCAG 2.2 requirements?
The converter generates semantic HTML that addresses many WCAG 2.2 Level AA success criteria, including proper heading structure (1.3.1 Info and Relationships), meaningful sequence (1.3.2), and use of semantic markup. However, full WCAG compliance also depends on factors like color contrast, image alt text, and link purpose — which may need manual review after conversion. We recommend using the output as a strong starting point and then running an accessibility audit to address any remaining issues.
Can this tool help with Section 508 compliance?
Yes. Section 508 of the Rehabilitation Act requires federal agencies to make electronic documents accessible. Providing an HTML alternative to a PDF is one of the accepted remediation strategies. The semantic HTML output from this tool — with proper headings, tables, lists, and document structure — directly supports Section 508 compliance. For government use, you should still review the output against your agency's specific accessibility requirements.
What should I do after converting to make the HTML fully accessible?
After conversion, review the HTML for these key items: (1) Add descriptive alt text to any images or figures. (2) Verify the heading hierarchy is logical and complete. (3) Check that table headers correctly describe their columns or rows. (4) Ensure link text is descriptive rather than generic like "click here." (5) Test color contrast ratios meet WCAG AA minimums. (6) Navigate the page using only a keyboard to verify focus order and operability. Running an automated accessibility checker like axe or WAVE can help catch remaining issues quickly.