Compress PDF Online
Reduce PDF file size while preserving quality. Our free online tool helps you shrink large PDF files for easy sharing and storage.
Select PDF File
Choose a PDF file to compress or drag and drop it here
Selected File
Compression Preview
Compressing your PDF file…
How to Compress PDF Files Online
Our free PDF compressor makes it simple to reduce PDF file size while maintaining acceptable quality. Whether you need to shrink PDFs for email attachments, web uploads, or storage savings, our tool provides customizable compression options to meet your needs.
Why Use Our PDF Compressor?
- 100% Free – No hidden charges or watermarks
- Secure Processing – Files are processed in your browser and never uploaded to our servers
- No Registration – Use immediately without signing up
- Adjustable Compression – Choose between quality or file size
- Preserves Text Quality – Keeps text sharp while compressing images
- Works on Any Device – Fully responsive design for desktop, tablet and mobile
Step-by-Step Guide to Compress PDFs
- Click “Select File” or drag and drop your PDF document into the upload area
- Adjust compression settings to balance quality and file size
- View the estimated compression results in the preview section
- Click the “Compress PDF” button to process your document
- Download your compressed PDF file when processing is complete
Common Uses for PDF Compression
People use our PDF compressor tool for various purposes:
- Reducing file size for email attachments
- Optimizing PDFs for web uploads and downloads
- Compressing scanned documents for storage
- Shrinking large presentations or reports
- Preparing documents for mobile viewing
- Meeting file size requirements for online submissions
Frequently Asked Questions
Is there a limit to the PDF size I can compress?
You can compress any size PDF, though extremely large files may take longer to process.
Will text become blurry after compression?
No, our tool preserves text quality while compressing images and other elements.
Is my data secure?
Yes! All processing happens in your browser – your files never leave your device.
How much can I reduce my PDF file size?
Compression results vary, but typical reductions range from 30% to 70% depending on content.
What’s the difference between compression levels?
Low compression preserves more quality, High compression maximizes size reduction, and Medium offers a balance.
Does this tool work with scanned PDFs?
Yes, but compression results depend on the scan quality and resolution.