Compress PDF File Size Without Losing Quality

Compress PDFs by up to 90% while maintaining readable text and sharp images.

Understanding PDF Compression

PDF compression reduces file size by optimizing how images, fonts, and content are stored. The goal is to achieve maximum compression while preserving document quality and readability.

Our compression algorithm intelligently reduces redundancy and optimizes image quality based on content, ensuring your documents remain clear and professional.

How to Compress Your PDF

1. Upload PDF — Select your PDF file to compress
2. Choose compression level — Select from Light, Medium, or Maximum
3. Preview results — See estimated size reduction
4. Compress file — Process your PDF
5. Download — Save your compressed PDF

Compression Levels Explained

• Light compression — Minimal reduction, best quality (typically 10-30%)
• Medium compression — Balanced (typically 30-60%)
• Maximum compression — Smallest file (typically 60-90%)

Compression Quality Comparison

What Gets Compressed?

Compression optimizes several elements:

• Images — Downsampled and recompressed appropriately
• Fonts — Subset embedded (only used characters)
• Metadata — Remove unnecessary data
• Objects — Clean up redundant elements

"Compressing our quarterly report from 25MB to 3MB made it possible to email to all stakeholders. The quality was still excellent!"

Code example for compression:

// Compress PDF with quality options
const options = {
  compressImages: true,
  imageQuality: 0.7,
  subsetFonts: true,
  removeMetadata: false,
  compressionLevel: 'medium'
};

const compressedPdf = await compressPdf(fileData, options);
console.log(`Reduced from ${originalSize} to ${compressedSize}`);