Reduce PDF size on Mac
Skip Preview's blurry Reduce File Size filter. Compress PDFs on your Mac to the exact size you need, right in Safari or Chrome.
- 100% free, unlimited
- No signup
- No watermark
- Files never leave your device
LegionFundingSponsoredSkip the evaluation. Trade a $100K account today.
LegionFunding's Instant Funding gives you a funded account with no challenge to pass. Trade firm capital on MetaTrader 5 from day one and keep 80% of the profits.
- No evaluation to pass
- 80% profit split
- 24-hour payouts
- Scale up to $400K
- Fee refunded on payout
- Crypto or bank payouts
Instant Funding · $100K
$699
One-time fee, 100% refunded on payout
Get funded instantlySmaller Instant Funding accounts
Affiliate link: we may earn a commission if you buy through it, at no extra cost to you. Trading involves risk. Only trade what you can afford to lose.
Frequently asked questions
Everything about compressing PDFs, sizes and privacy.
How do I reduce PDF size on a Mac?
The quickest way is to open this page in Safari or Chrome, drag the PDF from Finder onto the compressor and click Download. The built-in alternative is Preview: File, Export, set Quartz Filter to Reduce File Size, then Save.
Why does Preview's Reduce File Size make my PDF blurry?
Preview's Quartz filter downsamples every image very aggressively and gives you no control over size or quality, so scans often become unreadable. This compressor lets you choose the exact percentage or size and keeps the best quality that fits.
How do I shrink a PDF on Mac without losing quality?
Use Smart mode with a moderate target such as 50%. Text and vector graphics stay exactly as they were, and only oversized images are re-encoded, so the document looks the same on a Retina screen.
Do I need to install an app on my Mac?
No. Everything runs in your browser on macOS, on both Apple silicon and Intel Macs. Nothing to download, and your files never leave the Mac.
Is it really free and unlimited?
Yes. There is no file size limit, no daily limit, no number of files limit, no signup and no watermark. Compression runs on your own device, so there is nothing to pay for and nothing to cap.