PDF Compressor.
Reduce file size.
Compress PDF files while maintaining quality. Your file never leaves your browser — 100% private and secure.
Drop PDF file here or click to select
Your file never leaves your browser — 100% private
How to use the PDF compressor
Reduce your PDF file size online for free. Our PDF compressor works entirely in your browser — no uploads, no servers, complete privacy.
Quick start
- Upload your PDF — Drag and drop your PDF file or click to select
- Adjust quality — Use the slider to balance file size vs quality (30% to 100%)
- Compress — Click "Compress PDF" and wait a few seconds
- Download — Your compressed PDF will download automatically
Key features
- 100% client-side processing — your files never leave your browser
- Adjustable compression quality — from 30% to 100%
- No file size limits — works with any PDF
- Privacy guaranteed — no uploads, no servers, no tracking
- Free forever — no signup, no watermarks
Perfect for
- Email attachments — reduce PDF size to meet email limits
- Website uploads — smaller PDFs for faster loading
- Archiving — save storage space
- Sharing — faster uploads and downloads
All processing happens locally on your device. Your PDF is never uploaded to any server — complete privacy guaranteed.