PDF Compressor — Free & Private in Your Browser

PDF Compressor runs entirely in your browser. Enable JavaScript to use the interactive tool — your files are processed locally and never uploaded.

What is PDF Compressor?

PDF Compressor reduces the file size of heavy PDF documents by optimizing internal structures and streams, entirely in your browser.

How to Use PDF Compressor

Upload a heavy PDF
Click Compress
Download the optimized version

Why Use Our PDF Compressor?

Bypass email attachment limits
Completely secure local processing
Fast and reliable

Common Use Cases

Shrinking portfolios for email applications
Saving storage space on mobile devices

Frequently Asked Questions

Compression depends on content. Image-heavy PDFs can often be reduced by 50-80%.