Yes! Low or Medium compression levels aim to reduce metadata and structural overhead without affecting image resolution. For documents with high-res photos, High compression may reduce image quality slightly but results in much smaller file sizes.

Our tool is designed for safety. By processing files in your browser, your data remains more private compared to traditional server-side upload tools. However, for highly sensitive legal or financial documents, we recommend using offline professional software.

Yes! This tool is mobile-responsive and works perfectly on Chrome, Safari, and other mobile browsers on both Android and iOS devices.

Some PDFs are already optimized, or they contain many complex vector paths rather than images. In these cases, even the high compression level might only yield a small reduction.

No. The entire process remains within your web browser. No registration, no downloads, and no credit cards required.