HTML to PDF Converter — Convert HTML Pages to PDF Free

This converter transforms HTML markup into formatted PDF documents using the browser's built-in DOMParser API combined with jsPDF for PDF generation. The tool accepts input through two modes: direct HTML code pasting into a text editor, or file upload of .html/.htm files which are read using the FileReader API.

The HTML content is parsed by DOMParser into a full DOM tree, then a recursive walker extracts content nodes while respecting the document structure. Headings (h1-h6) are rendered with descending font sizes and bold weight. Paragraphs, divs, sections, and articles extract their text content as separate blocks. List items are prefixed with bullet characters. Script, style, and head elements are filtered out. The document's title element, if present, is rendered as a prominent header with a separator line.

An optional live preview feature renders the HTML in a sandboxed iframe (using the srcdoc attribute with sandbox="allow-same-origin") so users can verify the content before conversion. The sandboxing prevents any JavaScript in the HTML from executing, ensuring security. The generated PDF uses proper pagination with configurable margins, and heading hierarchy is visually represented through font size differentiation.