Word to PDF Conversion: Complete Guide
Converting a Word document to PDF preserves its formatting and makes it readable on any device, operating system, or browser without requiring Microsoft Word. Our free tool uses mammoth.js to extract document content, html2canvas to render each page at high resolution, and pdf-lib to assemble a real, downloadable PDF — entirely in your browser.
Why Convert to PDF?
PDF files look identical on every device and OS. They cannot be accidentally edited by recipients. They are universally accepted by email clients, submission portals, courts, government agencies, and document management systems. When you need to send a document that must look exactly as you designed it, PDF is the right format.
What Formatting Is Preserved?
The conversion preserves headings (H1–H6), paragraphs, bold, italic, underline, strikethrough, bullet and numbered lists, and basic tables. Advanced Word features are not guaranteed:
- Tracked changes and comments are not included
- Macros and form fields are not executed or converted
- Embedded Excel charts and SmartArt may not render
- Complex table styles with merged cells may simplify
Privacy Guarantee
Because this conversion runs entirely in your browser using client-side JavaScript libraries, your Word document never leaves your device. There is no server upload, no third-party API call, and no data stored anywhere. When you close the tab, all processed data is cleared from memory.
Tips for Best Results
- Use .docx format (the default in Microsoft Word 2007 and later) for best compatibility.
- Keep documents under 50 pages for fastest conversion speed.
- After converting, compress the PDF with our PDF Compressor if it is too large to email.