Help & FAQ

Yes! OnlinePDFPro is 100% free with no hidden costs, premium plans, or usage limits. All tools are available to everyone without registration.

No. Your files never leave your device. All processing happens directly in your web browser using JavaScript. We don't have access to any of your files.

Your files are stored temporarily in your browser's memory. They are automatically cleared after 5 minutes or when you close the tab. We recommend downloading your processed files right away.

The default limit is 100MB per file. However, since processing happens in your browser, very large files may be slower or cause issues on devices with limited memory.

OnlinePDFPro works best on modern browsers including Chrome, Firefox, Safari, and Edge. We recommend keeping your browser updated for the best experience.

Yes! OnlinePDFPro can be installed as a Progressive Web App (PWA). Once installed, many features work offline. You will need internet to load the page initially.

Our PDF compression focuses on structure optimization. PDFs with already-compressed images may not shrink significantly. The tool works best on PDFs with uncompressed content or those exported from applications without optimization.

Currently, OnlinePDFPro cannot process password-protected PDFs. You'll need to remove the password protection first using other software.

We appreciate your feedback! You can contact us through our GitHub repository to report issues or suggest new features.