Free Converter
PDF to HTML Converter
Convert PDF documents to clean, semantic HTML files directly in your browser. Fast, secure, and preserves document structure.
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or drag and drop here
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Convert PDF documents to clean, semantic HTML files directly in your browser. Fast, secure, and preserves document structure.
or drag and drop here
Converting PDF to HTML transforms a fixed-layout document into a flowing web page. The conversion preserves text content, headings, paragraphs, and basic styling while abandoning the PDF's exact pixel layout in favor of HTML's responsive flow. This is the right trade for documents being republished as web content — articles, reports, technical documentation — and the wrong trade for documents whose layout is essential — forms, invoices with strict positioning, designed marketing pieces.
This tool uses PDF.js to extract text, fonts, and basic structure from the PDF, then writes corresponding HTML markup with embedded CSS for typography. The output is a standalone .html file you can open in any browser, paste into a CMS, or further style with custom CSS. No upload happens; the conversion runs in your browser.
Two output styles are supported. Semantic HTML produces clean markup with paragraph and heading elements, suitable for republishing content on a blog or documentation site. Visual HTML preserves more of the PDF's layout via absolute positioning, suitable when the document's appearance matters more than re-flowability.
PDFs do not work well on the web. Mobile browsers render PDFs awkwardly, screen readers handle them inconsistently, search engines crawl them but rank them lower than equivalent HTML, and embedding a PDF in a webpage produces a clunky in-iframe viewer rather than a native experience. Converting to HTML produces content that works the way the web works.
HTML is also editable. Once a PDF's content is in HTML form, you can change typography, restructure sections, add interactive elements, and integrate the content with other web pages. PDF resists all of those operations.
Drop the PDF, choose output style, generate.
PDF.js exposes text content as items with bounding boxes, fonts, and Unicode strings. The converter sorts items by Y then X to recover reading order, groups items at similar baselines into lines, and clusters lines into paragraphs based on vertical spacing.
Heading detection uses font-size analysis: sizes significantly larger than the body font become headings, with the largest mapped to h1, the next-largest to h2, and so on. List detection looks for lines starting with bullet characters or numeric sequences.
The output HTML is self-contained: doctype, head with embedded CSS for typography, body with the converted content. Inline images from the PDF are not currently embedded; they remain a known limitation. The output validates as HTML5.