PowerPoint to PDF Converter
Convert PPTX presentations to PDF format. Free, private, no upload stored.
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Why convert PPTX to PDF?
PDF preserves your presentation layout exactly as designed, regardless of the viewer's software. Share slides without requiring PowerPoint.
About Converting PPTX to PDF
PPTX is the modern Microsoft PowerPoint format, a ZIP of XML that stores slides, animations, media and speaker notes. It is the standard for presentations. When you need to move away from PPTX, the usual reason is simple: needs presentation software.
Converting your PPTX presentation to PDF solves that. PDF is the universal fixed-layout document format. It freezes fonts, images and layout so a file looks identical on every device, which is why it is the standard for contracts, invoices and reports. In practice you gain identical appearance on every device and universally supported. PrivConvert runs the whole PPTX-to-PDF conversion in server memory and deletes your file the instant the PDF is ready — nothing is stored, logged or reused.
When this conversion helps
- You need identical appearance on every device
- You need universally supported
- You need supports encryption, signatures and forms
- Sharing a PPTX presentation with someone whose software expects PDF
Tips for best results
- Files up to 250 MB are supported, and you can batch-convert several PPTX files at once; each is processed privately and deleted immediately.
How to Convert PPTX to PDF Online
Turning a PPTX file into PDF is straightforward here — upload, convert, download. What you gain with PDF: identical appearance on every device.
Drag and drop your file into the upload area, click to browse your device, or paste a URL to a file hosted online. You can upload files up to 250 MB and batch convert up to 20 files at once.
Once uploaded, the conversion from PPTX to PDF starts automatically. The process runs entirely in an isolated environment - your data never leaves the secure pipeline.
Your converted file is ready instantly. Click the download button to save it to your device. The file is deleted from memory immediately after download.
Private by design, not as an afterthought
Most online converters upload your files to a server, keep them for days, and may mine them for AI training or resale. PrivConvert was built the opposite way — around your privacy.
Every conversion runs in its own locked-down process with no network access, so files can never leak or interfere with one another.
Your files are handled entirely by automated code. No staff, partner or AI model ever reads, stores or trains on your data.
Files are processed in volatile memory (RAM) and purged the instant your download is ready — nothing is ever written to disk, cached or backed up.
Every upload and download is protected with TLS 1.3, so your document cannot be intercepted on the way to the server or back to you.
PPTX vs PDF - Format Comparison
| Feature | PPTX | |
|---|---|---|
| File extension | .pptx | |
| Full name | Office Open XML Presentation | Portable Document Format |
| Introduced | 2007 | 1993 |
| Encoding | Binary | Binary |
| Editable | Yes | No |
| Open standard | Yes | Yes |
| Supported by PrivConvert | Yes (as input) | Yes (as output) |
| Privacy-safe conversion | In-memory, zero storage | |
| Max file size | 250 MB per file | |
| Batch support | Up to 20 files simultaneously | |
Trusted by thousands of users
Professionals reach for PrivConvert when the document they are converting is sensitive and cannot be left sitting on someone else’s server.