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What this tool offers
Change PPTX slide dimensions directly in your browser.
- Presets: 16:9, 4:3, 1:1, 9:16, A4, and Letter.
- Custom size: Set width and height in inches.
- Preview: See selected aspect ratio before download.
- Private: No uploads; processed locally.
Presets and custom size
Use presets for common ratios or custom inches for exact dimensions.
Why change slide size?
Useful for widescreen, print layouts, social portrait formats, and template matching.
How it works
Upload PPTX, choose size, preview, and download.
Powered by browser APIs and client-side processing.
Frequently Asked Questions
Is my file secure?
Yes. Processing runs in your browser and files are not uploaded.
What presets are available?
16:9, 4:3, 1:1, 9:16, A4, and Letter.
Can I use custom dimensions?
Yes. Enter width and height in inches.
Can I switch files?
Yes. Use Choose another file or Clear.