Word to PDF in your browser
Turn a Word document (.docx) into a PDF without uploading your contract, resume, or manuscript to someone else’s server. A full open-source office engine runs right in your desktop browser, lays out the pages, and saves the PDF on your machine.
- Your DOCX is converted on your computer. Nothing is uploaded.
- Uses a real office layout engine, not a rough HTML copy.
- Keeps page breaks, tables, paragraphs, and fonts.
- Confidential drafts stay completely private.
How to use Word to PDF
- Open this page in a desktop browser and choose your DOCX file.
- Confirm the engine requirements so the converter can start.
- Download the PDF and check fonts, page breaks, and tables.
Technical notes & limits
- Works with .docx only (not older .doc files) and needs a desktop browser with SharedArrayBuffer and about 1 GB of free memory.
- The first run downloads about 30 MB of engine files from this site. Always check pagination and fonts in the PDF.
A real office engine in your browser
Instead of guessing at your layout, InBrowserPDF runs a complete office engine compiled to WebAssembly (about a 30 MB download). Your browser caches it after the first time. It starts in an isolated worker and converts your DOCX entirely in your computer’s memory.
What you need, and a note on fonts
The engine needs about 1 GB of browser memory and a feature called SharedArrayBuffer, so it only works in modern desktop browsers. If your document uses a font that isn’t included, a similar-sized font is swapped in. That can nudge line breaks or page breaks a little.
Frequently asked questions
Is my Word document uploaded to a cloud server for conversion?
No. Your browser downloads the converter itself from this site, then converts your DOCX on your device.
Can I convert legacy .doc files?
Not directly. Open the .doc in your word processor, save it as .docx, then convert.
Why does Word to PDF require a desktop browser?
The office engine needs about 1 GB of memory and multi-threading features that phone browsers restrict.