SkyToolz

Compress PDF

Reduce PDF file size. All processing runs in your browser — no server upload needed.

🔒All files are processed locally in your browser. Nothing is uploaded to any server.
📁

Drag & drop a PDF file here, or click to select

How to Compress a PDF

  1. 1Upload or drag and drop your PDF file.
  2. 2Choose a compression quality level (High, Medium, or Max).
  3. 3Click 'Compress' and wait for processing.
  4. 4Download the compressed PDF.

Frequently Asked Questions

How do I reduce the size of a PDF file?
Upload your PDF to SkyToolz's Compress PDF tool, select a compression level, and click Compress. The tool runs entirely in your browser.
Does compressing a PDF reduce image quality?
Higher compression levels may reduce image quality slightly. Use the High Quality setting to preserve the best visual fidelity.
Is there a file size limit for PDF compression?
There is no strict limit, but very large files depend on your browser's available memory.
What is the difference between High, Medium, and Maximum compression?
High quality preserves image quality while slightly reducing file size. Medium offers a balanced trade-off between quality and compression. Maximum compression reduces file size as much as possible but may slightly reduce image quality.
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