Compress PDF

Optimize your PDF files to reduce size. 100% Free & Client-side.

Drag & Drop PDF file here

or

filename.pdf
0 KB
New Size: 0 KB (Saved 0%)

Note: Browser-based compression removes unused metadata and optimizes document structure. It does not downsample images to avoid quality loss.

How to Reduce PDF File Size?

  1. Upload PDF: Drag and drop or select the PDF file you want to compress.
  2. Choose Mode: Select "Basic Compression" for text documents or "Strong Compression" for image-heavy files.
  3. Compress: Click the "Compress PDF" button. The tool will optimize your file instantly.
  4. Download: Check the size reduction and download your smaller PDF file.

Why Use Softool PDF Compressor?

Maximum Privacy

Your files are compressed locally in your browser. We never upload your documents to any server.

Two Compression Modes

Choose between lossless optimization (Basic) or image rasterization (Strong) for maximum size reduction.

Maintain Quality

We use advanced algorithms to reduce size without significantly sacrificing visual quality.

No Limits

Compress large files without size restrictions. Process as many files as you need for free.

Common Questions

What is the difference between Basic and Strong compression?

Basic removes unused data and optimizes structure, keeping text selectable. Strong converts pages to images, which shrinks file size drastically but makes text unselectable.

Will my file quality get worse?

Basic compression is lossless. Strong compression uses intelligent compression techniques to keep the file looking great while significantly reducing its size.