Change Slide Size
Change PowerPoint slide dimensions
Last updated: April 30, 2026
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Settings
Selected Preset
Widescreen (16:9)
33.87 × 19.05 cm
12,192,000 × 6,858,000 EMUs
The tool modifies the <p:sldSz> tag inside your PPTX file. Only the canvas size changes — your content layout may need manual adjustment after resizing.
Change Slide Size — No Uploads Required
Adjust your presentation for any screen or print format. Easily switch between Standard (4:3), Widescreen (16:9), or custom dimensions for specialized displays. Our tool intelligently scales your content to fit the new size, helping you avoid distorted images or cut-off text. Perfect for repurposing presentations for social media, mobile viewing, or professional printing.
Why This Tool Exists
What makes this useful — and why I built it this way.
Universal Display: Ensure your slides look perfect on any projector or monitor.
Print Ready: Scale your slides to standard A4 or Letter sizes for handouts.
Time Saving: Avoid manually resizing elements on every slide.
Secure Local Processing: No data ever leaves your browser.
When You'd Use This
Real situations where this tool saves the day.
Monitor formatting: Convert widescreen 16:9 slides to classic 4:3 layouts.
Print formatting: Adjust slides to standard A4 or Letter sizes for handouts.
Custom screens: Format presentations for unique display banner ratios.
Using Change Slide Size
It's straightforward — here's how it works.
Select your PPTX file.
Choose a preset size or enter custom dimensions.
Select 'Scale to Fit' or 'Ensure Fit' for your content.
Click 'Change Size' to regenerate the presentation.
Download the resized PPTX file.
Questions People Ask
Honest answers about how this works.
Does it work with legacy .ppt files?
For best results, we recommend converting legacy .ppt files to the modern .pptx format first using our conversion tools.
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