Compress PDF
Reduce PDF file size while maintaining quality.
🔒 Your files never leave your device.
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Click to select a PDF or drag and drop
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Original
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Compressed
FAQ
How does client-side compression work?▼
We use pdf-lib to re-serialize the PDF, which can strip unused objects, metadata, and optimize the internal structure. The compression ratio depends on the original file — heavily optimized PDFs may not shrink much.
Will this reduce image quality?▼
No. This tool optimizes the PDF structure without re-encoding images. For aggressive image compression, a server-side tool would be needed. This is the safe, privacy-preserving approach.