How does PowerPoint compression work?

EdgeDocs compresses the images embedded inside your .pptx file. Since images are usually the largest component of a presentation, this significantly reduces the overall file size while keeping text and layout intact.

Will compression affect slide quality?

Text, shapes, and layout remain identical. Images are recompressed at optimized quality settings. For most presentations, the visual difference is negligible while the file size reduction is substantial.

What file formats are supported?

The tool accepts .pptx files (PowerPoint 2007 and later format). Older .ppt files need to be saved as .pptx first.

Does this upload my presentation to a server?

No. EdgeDocs processes the compression entirely in your browser. Your presentation — including any confidential slides, speaker notes, or embedded data — never leaves your device.

How much smaller will my file be?

Results depend on the images in your presentation. Files with many high-resolution photos typically see 40-70% reduction. Presentations that are mostly text and shapes will see smaller reductions.

Compress PowerPoint

Reduce file size by compressing embedded images. All processing happens in your browser.

Free: 25MB file limit

This tool compresses PPTX files by optimizing embedded images. Presentations with few images may see smaller reductions.

Drop PDF files here or click to browse

Maximum file size: 25MB

🔒 Your files never leave your browser. All processing is done locally.

No-Upload Processing

Network requests during processing: 0

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