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PDF Compress

Reduce PDF file size with object stream compression

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Click or drop a PDF file
Processed locally in your browser
Original
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Compressed
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Saved
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⬇ Download compressed PDF

How compression works

  • This tool re-saves the PDF with object streams enabled β€” this packs many small PDF objects into compressed streams
  • Removes duplicate font data, redundant resources and stream metadata
  • Best for PDFs with many text/vector pages and inefficient encoding
  • For PDFs dominated by large embedded images, compression is limited β€” use an image-specific tool first

Notes

  • Some already-optimized PDFs may not shrink further
  • Visual quality is preserved (no lossy re-encoding)
  • Encrypted/password-protected PDFs are not supported