PDF Compressor

Reduce PDF size for email and uploads. Pick a quality preset or fine-tune DPI, image quality, and grayscale—everything happens locally.

This tool processes your PDF entirely in your browser. Files are not uploaded to any server.
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Load your PDF

Drop a PDF or click to choose

The file stays on this device. Large PDFs may take a moment to render.

Compression settings

Pick a preset and override any values you need; blank fields fall back to the preset.

Enter a value smaller than the original to auto-tune quality toward that size.

Use this when color is not required; it usually shrinks scans further.

Result

Tips