Compress PDF Online - Reduce the size of your PDF files while keeping the best possible quality. Our secure PDF compressor tool runs 100% in your browser: no watermarks, no registration, no uploads – just fast, free PDF size reduction.
Smart Optimization
Reduce file size while retaining maximum quality. Remove unused data and metadata.
No Uploads
All compression takes place locally in your browser – your files stay private and secure.
Fast & Free
Compress unlimited PDF files for free. No watermark, no limits.
PDF compressed! Download your smaller file.
How to Compress a PDF File
- Click Select a PDF file to compress and choose a PDF from your device.
- Click Compress PDF to reduce the file size instantly in your browser.
- Click Download Compressed PDF to save your smaller PDF file.
Frequently Asked Questions
Is this PDF compressor free?
Yes! Use our compressor as much as you want, with no watermarks or sign-up required.
How much can my PDF be compressed?
Many PDFs see a size reduction. For maximum compression (image and font optimization), use dedicated desktop or server tools.
Are my files secure?
Yes. Your PDF never leaves your device. All compression is performed locally in your browser.
Does it work on mobile?
Yes! Compress PDFs on your phone, tablet, or desktop browser.
Privacy First: No data leaves your device.
No Sign Up: 100% free, no registration, no watermark.
Blazing Fast: Compress PDFs instantly in your browser.