Reduce your PDF file size online for free. Pick a compression level, see the before/after size, and download — everything happens in your browser, so your files never leave your device.
1 = Maximum compression (smallest file) · 2 = Balanced · 3 = High quality (larger file)
Note: pages are rebuilt as optimized images, so text won't stay selectable. Best for scanned PDFs, forms, and image-heavy documents.
Most PDFs are large because of high-resolution images inside them. This tool renders each page and rebuilds the document with sensibly sized, JPEG-optimized images — the same trick professional tools use, done entirely on your device.
Upload your PDF above, choose a compression level with the quality slider, and click Compress. The tool rebuilds your PDF with optimized images right in your browser and shows the before/after file size.
Yes. Everything happens locally in your browser — your PDF is never uploaded to any server, so your documents stay private.
Higher compression means smaller size but slightly softer images. Use the quality slider to find the balance you need — the result shows the exact size before you download.
Yes. It is 100% free with no signup and no daily limits, unlike many tools that cap free use.