PDF to HTML Converter

About PDF to HTML Converter

Getting a PDF's content into a web page usually means manually retyping it or copy-pasting into a rich text editor and cleaning up whatever formatting mess comes with it. This tool extracts a PDF's text and produces clean, semantic HTML with basic heading structure automatically detected — h2 and h3 tags for headings, p tags for body paragraphs — ready to drop into a web page or CMS.

Since PDF has no native concept of headings or paragraphs — only text positioned at coordinates with a given font size — heading detection works by comparing each line's font size against the median size on that page: lines noticeably larger become headings, everything else becomes a paragraph. This heuristic was verified against a real test document with a distinctly larger title line and normal-sized body text, correctly producing an h2 heading followed by plain paragraph tags.

Every page's converted markup is wrapped in its own section element, keeping the original page boundaries structurally identifiable in the output HTML even though a continuously-flowing web page doesn't have the same concept of discrete pages a PDF does. All text content is properly HTML-escaped (ampersands, angle brackets) so the output is valid, safe-to-render markup rather than raw text that happens to look like HTML.

This produces plain structural HTML with no styling, images, tables, or layout information carried over from the original document — it's meant as a clean starting point for content that needs semantic heading structure, not a pixel-accurate reproduction of the PDF's visual design. For that, the PDF to JPG or PDF to PNG tools render pages as images that look exactly like the source instead.

How it works

1. Upload your PDF. Text and font sizes are extracted from every page.
2. Structure is inferred automatically. Larger text becomes h2/h3 headings; everything else becomes paragraphs.
3. Copy or download the HTML. Clean, escaped, semantic HTML output, ready to use.