Free · Adjustable · Nothing uploaded

PDF compressor

Reduce a PDF's file size right in your browser. Choose a compression level, see the savings, and download. Your document never leaves your device.

Drop a PDF here or browse

Best for scanned or image-heavy PDFs — your file stays on your device.

🔒 Compression runs entirely on your device — your PDF is never uploaded.

How to compress a PDF

Shrink a large PDF so it's easy to email or upload — without sending your file to a server.

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1. Add your PDF

Drop in any PDF; it's processed entirely in your browser.

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2. Pick a level

Choose how hard to compress — balance smaller size against visual quality.

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3. Download

Get the slimmed-down PDF and see exactly how much you saved.

PDF compression is handy for email attachment limits, web uploads, portfolios and forms. This tool re-encodes the images embedded in each page at a lower, adjustable quality and rebuilds the document, which is where most PDF bloat lives. Because it runs locally, confidential contracts and scans never leave your device. For converting pages to images instead, try PDF to JPG.

PDF compressor FAQ

Is my PDF uploaded?

No — it's compressed entirely in your browser; the file never leaves your device.

How does it work?

Each page is re-rendered and stored as an optimized image inside a new PDF at your chosen quality. Great for scanned, image-heavy PDFs.

Does text stay selectable?

No — pages are flattened to images, so selectable text isn't preserved. Best when small size matters most (sharing, email, uploads with limits).