Frequently Asked Questions

How does PDF compression work?

Our tool re-renders each PDF page as a JPEG image with adjustable quality, then rebuilds a new PDF. Lower quality = smaller file size. All processing happens in your browser.

Is my PDF uploaded to any server?

No. Everything runs locally in your browser. Your files never leave your device, ensuring complete privacy.

What quality setting should I use?

For text-heavy PDFs, 40-60% works well. For documents with images, try 60-80%. The preview helps you find the right balance between quality and file size.

Is this tool free?

Yes, completely free with no registration required. No limits on file size or number of compressions.