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How to Compress PDF Files Free Online

Large PDF files are a hassle to email, upload, or share. Compressing them reduces size while keeping quality. AI Human Post PDF Compressor offers 4 compression levels.

Compression Levels

LevelBest ForSize Reduction
eBookText-heavy documents70-90%
PrinterHigh quality printing30-50%
ScreenWeb and email50-70%
OriginalMinimum quality loss10-30%

How to Compress

  1. Go to PDF Tools
  2. Click "Compress PDF"
  3. Choose compression level
  4. Download your compressed file

Free: 1 compression/day. Premium: unlimited for 4/month. Also check Exif Eraser and AI Human Post.