Introducing ShrinkNote: Intelligent Compression for Keynote Presentations
Learn how ShrinkNote reduces Keynote file sizes by up to 90% while preserving visual quality, all without uploading your files anywhere.
By ShrinkNote Team
Introducing ShrinkNote
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.
ShrinkNote solves this problem.
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 to reduce file sizes by 40-90%—while keeping your presentations looking sharp.
How It Works
Unlike generic file compressors, ShrinkNote understands Keynote’s internal structure:
1. Smart Image Resizing
That 15-megapixel photo you dragged into Keynote? It’s probably displayed as a 400×300 thumbnail. ShrinkNote detects the actual display size and resizes the image to match—with a buffer for Retina displays. The result: your image looks identical, but it’s 10× smaller.
2. Modern Format Conversion
Keynote often stores images in older formats like TIFF. ShrinkNote converts these to HEIC (Apple’s modern image format), achieving 50% better compression than JPEG at the same visual quality.
3. Intelligent Deduplication
Corporate presentations often reuse the same logo or background across dozens of slides. ShrinkNote detects these duplicates and stores each unique image only once.
4. Metadata Cleanup
Every edit in Keynote stores undo history. Every calculation is cached. ShrinkNote removes this bloat while preserving everything you actually need.
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% |
Privacy First
Your files never leave your device. All processing happens locally using the same CPU that runs Keynote. There’s no cloud upload, no account required, and no telemetry on your presentation content.
Choose Your Quality
ShrinkNote includes five built-in presets:
- Lossless: No quality loss. Perfect for archival.
- Standard: Great balance for everyday use.
- Aggressive: Maximum compression for email.
- Extreme: When file size is critical.
- Fast: Speed-optimized batch processing.
Pro users can also create custom presets with granular control over every compression parameter.
Available Now
ShrinkNote is available on the Mac App Store and iOS App Store as a universal purchase—buy once, use on all your Apple devices.
Start with 5 free exports to see the difference for yourself.
Questions? Reach out at support@shrinknote.com