Convert PPTX slides to styled PDF instantly. Choose themes, add watermarks, preview every slide — no upload, no signup, 100% private.
Guides on presenting, converting, sharing, and securing PowerPoint files and PDFs.
Answers to the most common questions about converting PPTX presentations to PDF
A free, private browser-based PowerPoint to PDF converter. No server upload, no tracking, no ads. Built with jsPDF and JSZip — your files stay on your device.
PPTX files are read entirely locally. No file bytes are sent over the network. You can verify this via browser DevTools → Network tab.
Professional dark, light, blue, green, minimal, and sunset PDF themes. Each produces clean, branded output suitable for sharing.
JSZip extracts and parses the PPTX XML to show you titles and bullet points before converting. Confirm your file was read correctly.
Add custom watermark text with configurable opacity and font size. Useful for CONFIDENTIAL, DRAFT, or branded document distribution.
Convert only specific slides from a large presentation. Set From and To slide numbers to extract exactly what you need.
Optionally include an auto-generated table of contents page listing all slide titles with slide numbers.
| Feature | KJSynthora | SmallPDF | ILovePDF | Google Slides | MS PowerPoint |
|---|---|---|---|---|---|
| Free | ✓ Always | ⚠ Limited | ⚠ Limited | ✓ | ✗ Paid |
| No server upload | ✓ 100% | ✗ | ✗ | ✗ | ✓ |
| Custom PDF themes | ✓ 6 themes | ✗ | ✗ | ✗ | ✗ |
| Watermark | ✓ | ⚠ Paid | ⚠ Paid | ✗ | ✓ |
| No signup | ✓ | ✗ | ✓ | ✗ | ✗ |
| Works offline | ✓ | ✗ | ✗ | ✗ | ✓ |
| Image/animation fidelity | ⚠ Text only | ✓ | ✓ | ✓ | ✓ |