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How to Optimize PDF File Size

Large PDFs are slow to load, hard to email, and consume storage. Optimizing your PDF reduces file size while preserving quality.

PDF Optimization Levels

LevelBest ForTypical Reduction
Low CompressionPrint-quality documents10-20%
Medium CompressionMost documents30-50%
High CompressionWeb upload, email50-80%
Linearize (Web Optimize)Web/browser viewingFaster loading

Linearization for Web

Linearization (also called "web optimization" or "fast web view") restructures the PDF so it can be read page-by-page as it downloads. Instead of waiting for the entire file, the browser can display the first page almost instantly. Essential for PDFs hosted on websites or shared via cloud links.

What Gets Optimized

How to Optimize

  1. Go to PDF Tools
  2. Click "Optimize PDF"
  3. Upload your PDF
  4. Choose compression level
  5. Download your optimized file

Optimize PDF Free Online