Watermak Pro is a lightweight, privacy-focused PHP utility designed for businesses and freelancers who need to watermark sensitive documents without relying on third-party online converters. Unlike online tools that store your data, this script processes all files locally on your own server, ensuring your sensitive information remains private.

It features a modern, side-by-side preview interface that allows you to review the watermark placement instantly before final download. The script is built for speed and simplicity, requiring no heavy frameworks or complex database setups.

Privacy-First Architecture: All files are processed locally on your server; no data is sent to external third-party services.Professional 45° Watermarking: Applies custom text watermarks at a professional diagonal angle behind the PDF text layer.Live Side-by-Side Preview: View changes in real-time within the browser before committing to a download.Modern Responsive UI: A clean, mobile-friendly interface built with Tailwind CSS.Lightweight & Fast: Optimized PHP code that works seamlessly even on standard shared hosting.Easy Integration: A simple folder structure that is easy to deploy and manage.

PHP Version: 7.4 or higher.

Upload: Use an FTP client or File Manager to upload all files and folders (including src/ and font/) to your web server.Set Permissions: Ensure the /uploads and /processed folders are writeable by the server.Access: Open your browser and navigate to the index.php file in your installation directory.Select File: Choose a PDF document from your local device.Watermark: Enter your desired text (e.g., "INTERNAL USE") and click Generate Preview.Download: Review the watermark in the preview pane and click Download PDF to save the final version.