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PDFTorch
Open Editor
Free • No sign-up • Files stay in your browser

Compress & Optimize PDF Size

Shrink oversized PDF documents for email attachments or portal uploads by stripping redundant object streams, metadata, and downsampling heavy pages.

100% Local Browser Engine Ready — Zero files are uploaded to any server.

How to Use the Compress PDF Tool

  1. 1Upload the PDF file that needs file-size reduction.
  2. 2Pick a compression preset: Lossless Optimization, Balanced (150 DPI), or Extreme (96 DPI).
  3. 3Click 'Compress PDF' and compare the before-and-after file size savings.

Key Benefits & Privacy Guarantees

  • Shows exact byte and percentage reduction before you download.
  • Three compression levels tailored for strict portal limits.

Your privacy: This tool runs entirely inside your browser. Your document is never uploaded or sent over the network.

Frequently Asked Questions

What is the difference between Lossless and Extreme compression?

Lossless Optimization removes unused PDF objects and metadata while keeping vector text sharp. Balanced and Extreme modes re-encode heavy page graphics at controlled DPI levels.

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