We’ve all been there. You’ve created a beautiful presentation in Keynote, complete with high-resolution images and embedded videos. You go to share it and… it’s 250 MB. Too large for email. Slow to upload. Taking up precious iCloud storage.
What is ShrinkNote?
ShrinkNote is a native macOS and iOS app that intelligently compresses Keynote presentations. It analyzes your slides, understands how images are actually used, and applies targeted compression.
How It Works
Unlike generic file compressors, ShrinkNote understands Keynote’s internal structure:
Smart Image Resizing
That 15-megapixel photo you dragged in? It’s probably displayed as a 400×300 thumbnail. ShrinkNote resizes to match—with a Retina buffer.
Modern Formats
Keynote stores images in older formats like TIFF. ShrinkNote converts to HEIC for 50% better compression at the same quality.
Deduplication
Corporate decks reuse logos across slides. ShrinkNote detects duplicates and stores each unique image only once.
Metadata Cleanup
Every edit stores undo history. Every calculation is cached. ShrinkNote removes this bloat safely.
Real Results
Here’s what typical compression looks like:
| Presentation Type | Original | Compressed | Savings |
|---|---|---|---|
| Sales Deck (30 slides) | 127 MB | 8.3 MB | 93% |
| Photo Portfolio | 89 MB | 4.1 MB | 95% |
| Training Course | 203 MB | 12 MB | 94% |
Results will vary based on content. Photos compress more than vector graphics.
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I used to spend 20 minutes compressing images manually before sending presentations. Now it takes 10 seconds.
Privacy First
Getting Started
Download ShrinkNote
Get it from the Mac App Store (macOS 15+).
Drop your file
Drag and drop any Keynote file, or use the file picker. Works with .key files from any Keynote version.
Choose a preset
Pick from Lossless, Standard, Aggressive, Extreme, or Fast depending on your needs.
Export
Click Shrink and watch the magic happen. Your compressed file is ready in seconds.
Available Now
Questions? Reach out at support@shrinknote.com