DOCX To PDF Converter
Convert Word documents (.docx) to PDF in your browser. Preview HTML layout, then download PDF. 100% client-side — files never leave your device.
Word to PDF in your browser
Upload a .docx file. We convert it to HTML with Mammoth, show a print-style A4 preview, then export to PDF. No server upload. Legacy .doc files are not supported — save as .docx first.
Technical Specifications & Architecture
- Technical Standard:
- W3C HTML5 Recommendation & WHATWG Living Standard
- Execution Environment:
- 100% Client-Side Browser Sandbox
- Data Privacy:
- Zero Server Storage / No Tracking
- Processing Speed:
- Real-time local CPU execution
- Cross-Platform:
- Works on Windows, macOS, Linux, iOS & Android
Word & DOCX Document Stream Processing
DOCX files are processed by unpacking the underlying OpenXML zip archive in browser memory and parsing the document.xml stream. Text runs, paragraphs, and styles are analyzed locally without uploading documents to external conversion servers.
Provide Input
Enter, paste, or upload your data into the input field above.
Configure & Process
The tool immediately processes your input in real time according to your chosen settings.
Copy or Save
Use the Copy button to copy the output to your clipboard, or download the result to your device.
Common Use Cases
- Convert a report or resume from DOCX to PDF before emailing
- Share a Word document as PDF without installing Microsoft Word
- Quick PDF export when you only have a .docx file on a shared computer
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Frequently Asked Questions
- Is my Word document uploaded to a server?
- No. Conversion and PDF export run entirely in your browser. Your .docx never leaves your device.
- Why preview before PDF?
- You see the same layout that will be printed to PDF, so headings, lists, and tables are not a surprise in the downloaded file.
- Is the PDF searchable?
- The PDF is generated from a visual render (html2canvas). Text search and copy may be limited compared to Word’s native Save as PDF.
- Do you support .doc files?
- No. Only .docx (Office Open XML). Open .doc in Word or LibreOffice and Save As .docx.