PDF Compressor

Reduce PDF file size online free — no software, no signup, no watermark. Upload your PDF and get a compressed file in seconds. Processed locally for complete privacy.

🗜️ Up to 90% Smaller🔒 100% Private⚡ Instant Results

How to Use PDF Compressor

  1. 1

    Upload your PDF file — drag and drop or click to browse

  2. 2

    Choose your compression level — low, medium, or high

  3. 3

    Click Compress PDF to reduce your PDF file size online free

  4. 4

    Download your compressed PDF — no watermark, no signup needed

Frequently Asked Questions

Upload your PDF above, choose compression level, and click Compress. Processing happens in your browser — your file never leaves your device. Free, no signup required.
Yes. Our tool reduces PDF size by up to 90%. Most files compress below 1MB depending on content type and images.
You can compress PDF files up to 100MB completely free with no account needed.
Low compression keeps best quality. High compression maximizes size reduction but may slightly reduce image sharpness.
Yes. Your PDF is processed entirely in your browser. It never reaches our servers. 100% private guaranteed.