PDF Tools
Free Online PDF Compressor - Reduce File Size Instantly
Compress PDFs directly in your browser. No uploads, no servers, completely private. Adjust quality and resolution to reduce file size while maintaining clarity.
Drop your PDF here
or click to choose a file (max 200 MB)
0.5
0.7x
Waiting for a PDF...
No uploads. Everything stays on your device.
Original
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Compressed
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Reduction
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How PDF Compression Works
- Rasterization: Pages are rendered to high-quality images and re-packed into a new PDF.
- Quality Control: Image compression level (0.3-0.95) reduces file size at the cost of clarity.
- Resolution Scale: Downscaling (0.6x-1.5x) reduces both image resolution and output file size.
- Best Use: Great for scans, photos, and documents meant for sharing. Not recommended for archival.