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How to Compress PDF Files
Reduce the file size of your PDF documents while maintaining the best possible quality. Heavy PDFs can be difficult to email or upload; our compression tool optimizes the internal structure of your document directly in your browser.
How to use
- Select a PDF file you wish to compress.
- Choose a compression level: Low, Medium, or High.
- Click 'Compress PDF' to start the optimization.
- Compare the original and new size, then download the optimized file.
Key Features
- Multiple compression levels to balance size and quality.
- Browser-side optimization ensures data privacy.
- Strips unnecessary metadata to reduce bloat.
- Completely free with no file size limits.
Frequently Asked Questions
Will compression ruin my images?
Choosing the 'Medium' or 'Low' setting maintains very high quality. The 'High' setting prioritizes a smaller file size, which may slightly reduce image resolution.
Why didn't my PDF shrink in size?
If your PDF is already highly optimized or consists purely of basic text without images or embedded fonts, there may be little extra data left to compress.
Are my files uploaded to a server?
No. The compression algorithm runs entirely inside your web browser. Your files never leave your device.