Convert HTML to PDF in Your Browser Convert HTML markup to a formatted PDF document.
HTML to PDF
Convert HTML markup to a formatted PDF document.
Enter HTML
Type or paste your HTML markup.
Choose Size
Select A4 or Letter page size.
Convert
Generate and download the PDF document.
What Is HTML to PDF?
A HTML to PDF is a tool that transforms HTML markup into formatted PDF documents, allowing users to convert webpage content or HTML templates into a printable format. Developers and designers use it to generate PDF versions of web pages, email templates, or HTML documents, solving the specific problem of preserving complex layouts and typography when converting from HTML to PDF.
The tool solves this problem by parsing the HTML using the browser's DOMParser and rendering each element with appropriate typography and spacing, supporting common elements like headings, paragraphs, bold and italic text, lists, and horizontal rules. What makes it different is its ability to handle various page sizes, including A4 and Letter, and its client-side rendering approach, which ensures that all parsing and rendering happens in the browser, eliminating the need for server-side processing.
It uses a callback function to generate the PDF, embedding fonts like Helvetica, HelveticaBold, and HelveticaOblique, and calculating the optimal text wrapping and spacing for each element. This HTML to PDF converter is perfect for converting web content or HTML documents to PDF format online, providing a straightforward way to convert html pdf without losing any formatting. By using it, users can easily create PDF versions of their web pages or email templates, making it a useful tool for anyone looking to convert html to pdf online.
Why Use HTML to PDF?
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Supports common HTML elements
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Uses browser DOMParser for accurate parsing
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A4 and Letter page sizes
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No server-side processing needed
Common Use Cases
Web Content
Save web page content as PDF documents.
Email Templates
Convert HTML email designs to PDF.
Documentation
Transform HTML docs to distributable PDFs.
Archival
Create PDF archives of HTML content.
Technical Guide
The tool works by using the DOMParser to parse the input HTML into a DOM tree, which is then recursively traversed to apply formatting for each element type. It uses the pdf-lib library to create a PDF document and embed fonts such as Helvetica, HelveticaBold, and HelveticaOblique. The generate function calculates the optimal text wrapping and spacing for each element, taking into account the page size and margins. For example, headings are rendered with larger bold fonts, while paragraphs use a body size font. Lists are rendered with bullet characters, and bold or italic text applies the corresponding font style changes. Text wrapping is achieved using a custom wrapText function that splits text into lines based on the available width. The tool also supports automatic page breaks when the content exceeds the page height, ensuring that the output PDF is properly formatted. The output PDF can be saved in either A4 or Letter format, with dimensions of 595.28x841.89 pixels and 612x792 pixels respectively. The pdf-lib library is used to save the PDF document as a blob, which is then converted to a URL using the URL.createObjectURL method, allowing the user to download the generated PDF. The Blob constructor is used to create a blob from the PDF bytes, with the type set to application/pdf.
Tips & Best Practices
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1Use semantic HTML tags for best formatting
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2Close all tags properly for correct parsing
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3Nested lists render as flat bullet lists
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4Test with simple HTML before complex markup
Related Tools
Frequently Asked Questions
Q What HTML tags are supported?
Q Does it support CSS?
Q Can I convert a full webpage?
Q Does it handle images?
Q Does it execute JavaScript?
About This Tool
HTML to PDF is a free online tool by FreeToolkit.ai. All processing happens directly in your browser — your data never leaves your device. No registration or installation required.