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About PDF Compressor
Large PDF files can be difficult to email, upload, or share. Our free online PDF Compressor reduces the file size of your PDF documents while maintaining readability and quality, all within your browser.
How It Works
The tool uses local JavaScript libraries to parse the PDF structure. It reduces file size by compressing embedded images, removing unnecessary metadata, and optimizing the internal document structure without sending the file to a server.
Common Use Cases
- Shrinking large PDF reports or portfolios to fit email attachment limits
- Optimizing PDFs for faster downloading and web viewing
- Saving storage space on your hard drive or cloud storage
- Preparing documents for upload to portals with strict size limits
Frequently Asked Questions
The compression primarily targets embedded images and hidden metadata. While image quality may be slightly reduced, the text will remain perfectly sharp and readable.
Yes. Unlike many other PDF tools, our compressor processes the file entirely locally in your web browser. Your sensitive documents are never uploaded to our servers.