PDF Tools
Compress PDF
Compress PDF online free. Shrink large PDFs for email and uploads without signing up — processing stays in your browser with a live size comparison.
Compress PDF
Shrink PDF file size in your browser. Pages are re-encoded as compressed images — nothing is uploaded.
Compression level
How to use
- 1
Add your PDF
Drop a PDF from your device. It stays in your browser only.
- 2
Choose compression level
Pick High quality, Balanced, or Smallest. Preview and file size update live.
- 3
Download
Save the compressed PDF when the size looks right.
FAQ
Do you upload my PDFs?+
No. All PDF processing runs entirely in your browser using pdf-lib. Your files never leave your device.
Will text stay sharp?+
Compression re-encodes pages as images, so tiny text can look softer. Use High quality for readable documents, or Smallest when size matters most.
Why didn’t my PDF get smaller?+
Some PDFs are already heavily compressed. Try Smallest, or split and compress sections separately.
Is PrivyTool free? Do I need an account?+
Yes — 100% free online PDF tools with no registration, no sign-up, no watermarks, and no installation required.