Frequently Asked Questions
Everything you need to know about our service.
No. Our tool processes your PDF file entirely locally within your web browser. Your files never leave your device, ensuring maximum privacy and security.
Yes, PDFCompress is 100% free to use. There are no hidden fees, subscriptions, or registration requirements.
Our intelligent compression engine is designed to minimize file size while retaining visual fidelity. Text remains crisp. If you choose 'High Compression', image quality may be slightly reduced to achieve a smaller file size.
Because the processing is done on your own device's hardware, there is no hard file size limit imposed by us. However, very large files (e.g., over 500MB) might slow down your browser depending on your computer's RAM.
Absolutely not. We do not add any watermarks or modify the visible content of your documents in any way.