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ToolstikToolstik

PDF Compressor

Processed in your browser

Reduce PDF file size in your browser by rebuilding the document structure.

What this tool does

Reduce PDF file size in your browser by rebuilding the document structure.

Features

  • Local PDF compression
  • Size comparison
  • Keeps original if already small

How to compress a PDF online

  1. Upload a PDF file.
  2. Choose compression level (rebuilds the PDF for smaller size).
  3. Compress locally and compare file sizes.
  4. Download the optimized PDF if size decreased.

Supported formats

  • PDF

Limits

  • 50 MB per file

Limitations

  • Scanned PDFs may not shrink much without re-encoding images inside the file.
  • Encrypted PDFs may fail until unlocked.

Privacy

PDF processing happens in your browser.

Frequently asked questions

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