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Compress PDF

Optimize PDF structure and reduce file size

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Free PDF Compressor – Reduce File Size Online

ToolCraftr's PDF Compressor helps you optimize your PDF documents by removing redundant data and restructuring the file for maximum efficiency. Reduce file size without compromising structural integrity or losing text editability.

Smart Optimization

Polishes internal PDF structures to reduce size by 10-50%.

Fast & Free

No watermarks, no sign-up, and instant browser-based processing.

Secure

Your documents are processed locally and never sent to a cloud server.

How to Compress a PDF

  1. Upload: Select the PDF file you want to compress.
  2. Optimize: Click "Optimize PDF" to start the structural cleaning process.
  3. Review: Check the "Size Reduction" stats to see how much space you saved.
  4. Download: Save your smaller, optimized PDF file.

Frequently Asked Questions

Does it reduce image quality?

Our tool focuses on *structural* optimization (removing unused objects), so image quality is largely preserved.

Why didn't my file shrink much?

If a PDF is already optimized or consists mostly of compressed images, further structural compression may be limited.

Is it safe?

Yes! Since it runs in your browser, your sensitive financial or legal documents never leave your computer.