Compress PDF
Reduce PDF file size quickly without losing quality. Fast, secure, and 100% browser-based.
Drag & Drop your PDFs here
or click to browse files
Supports multiple PDF files
Smaller File
Better Quality
Processing...
0%
✅ Compressed Files
Tips for best results
- • Lower quality (40-60%) = smaller file size, good for email/web
- • Higher quality (70-90%) = better image clarity, good for printing
- • Text remains sharp regardless of quality setting
- • All processing happens in your browser — files never leave your device
Why use Compress PDF?
Large PDF files can be difficult to share via email or upload to websites. Compressing them makes it easier to handle and reduces storage space. This tool reduces file size while maintaining good readability.
Key benefits:
- 100% Browser-Based: Your files are never stored on any server.
- Fast Processing: Compress PDF files in seconds.
- Multiple Files: Compress several PDFs at once.
- Custom Quality: Choose the perfect balance between size and quality.
- Free & Unlimited: No registration, no limits.
How to use Compress PDF
- Drag & drop your PDF files or click to upload.
- Choose your preferred compression quality using the slider.
- Click "Compress All" and wait for processing.
- Download the compressed PDF files instantly.
Compress PDF – FAQ
Is this PDF compressor safe to use? +
Yes, the compression runs directly in your browser using secure JavaScript libraries. No files are uploaded to any server, so your documents remain private and secure.
Will the quality of my PDF be affected? +
You can control the quality with a slider. Text remains sharp, and images are re-encoded to reduce size. Setting lower quality makes files much smaller but may reduce image clarity.
Can I compress multiple PDF files? +
Yes, you can drag and drop multiple files at once. Each file will be compressed separately, and you can download them individually.
What happens to my files after compression? +
Your files are processed entirely in your browser. They are never uploaded to any server, stored, or shared with third parties. Once you close the page, everything is cleared from memory.
What is the maximum file size I can compress? +
Since processing happens in your browser, the limit depends on your device's available memory. Generally, files up to 50-100MB work well. For very large files, you may experience performance issues.
Why is my compressed file larger than the original? +
If your PDF contains mostly text with few images, compression may not reduce the size significantly. In some cases, the re-encoding process might increase the file size slightly. We recommend using a quality setting of 60-70% for best results.
Do I need to install any software? +
No, this tool works entirely in your browser. You don't need to install any software or create an account. Just upload your PDF and compress it instantly.
Is there a limit on how many PDFs I can compress? +
No, you can compress unlimited PDFs for free. There are no restrictions on usage, no daily limits, and no hidden charges.