How to Compress PDF on Mac — Easiest Methods
Three ways to compress PDFs on your Mac, from the simplest online method to Preview and Automator power-user tricks.
Compress PDF
Reduce file size while maintaining quality. Choose compression level.
How to how to compress PDF on Mac
Method 1: AskPDF (Easiest)
Visit askpdfapp.com, drop your PDF, compress, download. Works in Safari, Chrome, or any browser. No install needed.
Method 2: Preview
Open PDF in Preview > File > Export > Quartz Filter > Reduce File Size. Limited control over compression level.
Method 3: Automator
Create an Automator workflow for batch compression. Advanced, but great if you compress PDFs regularly.
Why how to compress PDF on Mac?
Mac users have several options for PDF compression, but they vary widely in ease of use and quality of results. Preview is built-in but gives you almost no control — it often over-compresses images. Automator is powerful but complex to set up. AskPDF works in any browser and gives you fine control over compression level, making it the easiest option for most people.
Frequently Asked Questions
Can Preview compress PDFs?
What's the easiest method?
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