Reduce a PDF’s file size in your browser. Pick a level and download a lighter file. Nothing is uploaded.
How to compress a PDF
Choose your PDF, pick a compression level and download the smaller file. Strong gives the smallest result, Balanced is the best all-round choice, and Light keeps the sharpest quality. Everything happens on your device, so even confidential documents never leave your computer.
Why some PDFs shrink more than others
Compression re-renders each page and rebuilds a lighter PDF, so scanned documents and image-heavy files shrink the most. A PDF that is already just text is usually small to begin with and may not get much smaller.
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Frequently asked questions
How much smaller will my PDF get?
It depends on the file. Scanned or image-heavy PDFs often drop by 40 to 70 percent; text-only PDFs are already small and may barely change.
Does compressing reduce quality?
Slightly, since pages are re-rendered at your chosen quality. Use Balanced for everyday sharing, or Light when you want to keep the crispest quality.
Is it safe for private documents?
Yes. The file is processed inside your browser and never uploaded, so nothing is stored on any server.