Convert PowerPoint to PDF — PPT & PPTX Converter
Upload multiple PowerPoint files at once and convert them to PDF automatically. Powered by LibreOffice WASM — all processing happens right in your browser, no files uploaded.
Key Features
PowerPoint Format Support
Supports .ppt and .pptx formats with full slide, image, chart, and text preservation using LibreOffice's native rendering engine.
100% Local Processing
All conversion happens in your browser using LibreOffice WASM. Your presentation files are never uploaded to any server — complete privacy and offline-capable.
Simple Drag & Drop
Just drag and drop your PowerPoint files, and they convert automatically. No complex settings, no registration, no waiting for uploads.
100% Private & Secure
All conversion happens locally in your browser using LibreOffice WASM. Your presentations never leave your device.
No Installation Required
No PowerPoint or LibreOffice installation needed. The entire engine runs in your browser via WebAssembly.
About This PowerPoint to PDF Converter
Our PowerPoint to PDF converter uses LibreOffice's native document conversion engine — compiled to WebAssembly and running entirely in your browser. Your presentations are converted with the same quality as desktop LibreOffice, preserving slide layouts, images, charts, tables, text formatting, and embedded objects. Unlike JavaScript-only converters that approximate presentation layout, LibreOffice WASM faithfully renders each slide using the same code that powers the LibreOffice desktop application. The engine supports .ppt and .pptx formats, including older PowerPoint formats. Multiple files can be uploaded and converted in batch — files start converting automatically as soon as they are uploaded, no need to click a convert button. Each completed PDF appears in the results list for individual download, or you can download all converted files at once as a ZIP archive. All processing is done client-side — your files never leave your device. No sign-ups, no data collection.
How to Convert PowerPoint to PDF — Step by Step
Converting presentations to PDF with our tool is simple:
Upload Your Files
Drag and drop one or more .ppt or .pptx files onto the upload area, or click to browse and select multiple files from your device.
Auto-Convert
Files begin converting automatically after upload using LibreOffice WASM — no need to click a convert button. The first conversion may take 1-2 minutes to initialize the engine.
Download Results
Each converted PDF appears in the results list for individual download. Use the Download All button to package all files into a single ZIP archive. All slides, images, and formatting are preserved.
Important Notes
This converter uses LibreOffice compiled to WebAssembly for professional-grade conversion. The first time you use it, the LibreOffice engine (~236MB) will be downloaded and cached by your browser — this takes 1-2 minutes. Subsequent conversions are instant. Slide transitions and animations are not supported in PDF output. Embedded audio and video are not included. Charts and images are preserved as static content. All processing stays local to your device — your files never leave your browser.