🧰Locly

Compress PDF to Smaller File Size

Reduce PDF file size while maintaining quality locally

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Select PDF File

or drag and drop a PDF file here

Supports: PDF files

About This Tool

Compress PDF reduces your PDF file size while maintaining acceptable quality. Choose from quality presets to balance file size and visual quality. Perfect for email attachments and uploads. All processing happens locally β€” your files are never uploaded to any server.

How to Use

  1. Select or drag a PDF file
  2. Choose compression quality preset
  3. Click 'Compress PDF' to process
  4. Compare original and compressed sizes
  5. Download the compressed PDF

Common Use Cases

  • Email attachments: Reduce PDF size to fit email limits
  • Web uploads: Compress PDFs for faster uploads
  • Storage: Reduce file sizes for archival
  • Sharing: Create smaller files for easier sharing
  • Mobile: Optimize PDFs for mobile viewing

FAQ

Q1: How much can I reduce the size?

Compression results vary based on content. PDFs with images compress more than text-only documents.

Q2: Will quality be affected?

Higher compression may reduce image quality. Use 'High Quality' preset to minimize quality loss.

Q3: Are my files uploaded?

No, all processing happens locally in your browser. Your files never leave your device.

Q4: Can I compress password-protected PDFs?

No, password-protected PDFs cannot be compressed. Remove the password first.

Q5: What's the maximum file size?

There's no strict limit, but very large files may be slower to process.

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