How to Reduce PDF File Size Mac
Compress PDFs on Mac with RatPDF — upload in the browser, download a smaller file.
How to Reduce PDF File Size Mac
Use RatPDF's free PDF compressor — Ghostscript-powered, no signup required.
How to Reduce PDF File Size Mac on Mac: use RatPDF PDF Compressor in your browser — open PDF Compressor, upload, and download. No app install required.
How compression works
RatPDF downsamples images, subsets fonts, and removes redundant objects using Ghostscript — real size reduction, not just re-saving.
Typical targets
- Email — under 20–25 MB attachment limits
- Government portals — 100KB–500KB caps
- Mobile sharing — faster uploads on slow networks
Quick workflow
- Open RatPDF PDF Compressor.
- Upload your PDF.
- Compress — Download the smaller PDF.
How it works
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Open the PDF CompressorNavigate to ratpdf.com/pdf/compress in any modern browser.
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Upload your PDFDrag and drop your file or click the upload zone. Password-protected PDFs are supported if you enter the password.
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Select compression levelChoose Recommended for balanced quality, Extreme for maximum size reduction, or Less for minimal quality impact.
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Download the resultClick download when processing completes. Verify file size locally before submitting to portals or email.
Frequently Asked Questions
Often 40–90% for image-heavy PDFs; text PDFs see smaller gains.
Yes — 3 compressions/day on free tier.
Adjust compression level; higher = smaller file, lower DPI.
Use Compress PDF at ratpdf.comhttps://ratpdf.com/pdf/compress.