Convert Word, Excel, PowerPoint, JPG, and PNG files to PDF — entirely in your browser. Your files never leave your device.
Most online PDF converters upload your files to their servers, limit daily usage, or force you to sign up. PDFduck does none of that.
- ✅ No uploads — Everything runs in your browser with JavaScript
- ✅ No sign-up — Open the site and convert immediately
- ✅ No watermarks — Clean, professional PDFs every time
- ✅ No daily limits — Convert unlimited files forever
- ✅ No tracking — We can't see your files because they never reach us
PDFduck uses client-side JavaScript libraries to process files entirely on your device:
| Format | Library |
|---|---|
| DOCX | Mammoth.js |
| XLSX | SheetJS |
| PPTX | JSZip + custom parser |
| JPG / PNG | Native browser APIs |
| PDF output | jsPDF + html2canvas |
No network requests after the page loads. You could even disconnect your internet and conversions would still work.
Chrome · Firefox · Safari · Edge — desktop and mobile. No app install required.
- 🌐 Website: pdfduck.app
- 🐦 X: @pdfduck
Built with care for privacy-conscious users 🦆