Free Compress PDF Online – Compress Documents Securely

Reduce PDF file size by optimizing objects and streams.

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Optimize structure and streams

Frequently Asked Questions

Compression depends on the document content. PDFs with many unoptimized objects or large metadata can see significant reduction. For documents already optimized, the reduction might be smaller.
Our current compression focuses on structure and stream optimization, which does not affect image quality. Advanced image downsampling is planned for future versions.
Yes. All processing happens locally in your browser. Your files are never uploaded to any server.