Compress PDF
Shrink your PDF file size without noticeable quality loss, all in your browser.
Drag and drop files here
or select a file from your computer
How to Use Compress PDF
Upload Your PDF
Click to browse or drag and drop your PDF. Works with any PDF regardless of content.
Compress Automatically
The tool removes redundant data and optimises internal PDF structures to reduce file size.
Download Smaller PDF
Download your compressed PDF. The content looks the same — it just takes up less space.
Frequently Asked Questions
No. Compression runs entirely in your browser. Your PDF stays private on your device.
Results vary by PDF. PDFs with many redundant objects or unoptimised structures compress well. PDFs that are already optimised may see little change.
This tool uses lossless compression techniques that do not degrade text or image quality.
Yes. The tool compresses the internal structure. However, scanned PDFs with large embedded images may not compress as much as text-based PDFs.