How to Compress a PDF on Mac (Free & Easy)

If you're using a Mac and need to shrink a large PDF file to send via email or upload to a portal, you might have tried using the built-in Preview app. While Preview works, it often severely degrades image quality. BunnyPDF offers a free, high-quality alternative that runs entirely in your Safari or Chrome browser on macOS.

Step-by-Step Guide

1. Go to the BunnyPDF Compress tool using the link below.
2. Drag and drop your large PDF file directly from Finder into the browser window.
3. Wait a few seconds while our WebAssembly engine optimizes the PDF locally on your Mac.
4. Click Download to save your newly compressed PDF. It will have a much smaller file size while retaining excellent quality!

The best part? Because BunnyPDF processes everything locally on your Mac's browser, your sensitive documents are never uploaded to a cloud server, ensuring 100% privacy.