Compress PDF on Mac — Free, No Adobe Required
Compressing a PDF on Mac to reduce its file size doesn't require Adobe Acrobat or any paid software.
Start Redacting for Free →The Best Free Way to Compress PDFs on Mac
Compressing a PDF on Mac to reduce its file size doesn't require Adobe Acrobat or any paid software. Our free browser-based tool works in Safari, Chrome, and Firefox on any Mac. Reduce PDF size by up to 80% while preserving text quality — your file never leaves your Mac.
- Works in Safari, Chrome, and Firefox — no app download or installation needed
- Files never leave your Mac — all compression happens locally in your browser
- Reduce file size by up to 80% — ideal for email and cloud sharing
- Free with no subscription, no trial limits, no Adobe licence required
How to Redact — 3 Simple Steps
Open in Your Mac Browser
Open this page in Safari, Chrome, or Firefox on your Mac and select your PDF.
Compress the PDF
Our tool automatically optimizes your PDF for the best balance of file size and quality.
Download to Your Mac
Download the compressed PDF directly to your Mac — ready to email or upload anywhere.
Key Features
🔒 Your Files Never Leave Your Device
Unlike tools that upload your PDFs to remote servers, our tool processes everything locally in your browser using WebAssembly. No server ever sees your documents — not even us. This makes it one of the most private PDF tools available, completely free.
Frequently Asked Questions
Does PDF compression work in Safari on Mac?
Yes — Safari on Mac fully supports our compression tool. It works in Safari 15 and later on all Mac models.
How much smaller will my PDF be after compression on Mac?
Image-heavy PDFs can be reduced by 60-80%. Text-only PDFs typically see 20-40% reduction depending on content.
Does it work on Apple Silicon Macs?
Yes — works natively on M1, M2, and M3 Macs through Safari, Chrome, or Firefox.
Is this better than compressing PDFs with Preview on Mac?
Our tool provides significantly better compression than Preview's Quartz filter, with more control over quality and without degrading text sharpness.
Ready to Redact Your PDF?
Free, instant, private — no account or software required.
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