Compress PDF
Reduce file size by adjusting image quality. Move the slider and compress.
Drop your PDF here or click to browse
Only PDF files accepted
filename.pdf
size: --
size: --
Compression level
Smaller file
Better quality
Original size:
---
Compression works by re-encoding images with adjusted quality. Text remains sharp.
✅ Compression complete!
size reduced from 1.2 MB to 0.6 MB
Download PDF
size reduced from 1.2 MB to 0.6 MB
Your compressed file is ready.
How to Use
- Upload PDF – Drag & drop a file or click the dropzone.
- Adjust quality – Slide to choose compression level (lower = smaller file).
- Click compress – Processing happens in your browser.
- Download – Save your compressed PDF instantly.
All processing is local – files never leave your device.
Features
- Adjustable image quality (10% – 90%)
- Preserves text and vector elements
- Real‑time size preview
- No file size limits (browser‑dependent)
- 100% client‑side, zero privacy concerns
- Works offline after page load
Why Use This Tool?
Private & secure
Your document never leaves your computer. No cloud, no tracking, no upload.
Fast & efficient
Optimized image recompression reduces file size while keeping documents readable.
Free forever
No registration, no watermarks, no hidden limits. Use as much as you need.
Frequently Asked Questions
🔒 Is my data secure?
Absolutely. Everything runs in your browser – the file is never transmitted. You can even disconnect from the internet after the page loads.
📉 How much can I reduce file size?
Typically 40‑80% for image‑heavy PDFs. Text‑only PDFs may not shrink much – our tool focuses on recompressing images.
📏 Any file size limits?
No artificial limits, but very large files may use significant RAM. Works smoothly for most documents under 200 MB.
🎨 Does it affect text quality?
No – only images are recompressed. Text, fonts, and vector graphics remain crisp and searchable.
📱 Works on mobile?
Yes! The interface is fully responsive. Compress PDFs directly from your phone or tablet.
🔄 Can I batch compress multiple files?
Currently we process one file at a time. For batch compression, check our “Batch Tools” section (coming soon).
Related Tools
More free tools available on the Tools page.