Add Image Watermark is a process of adding semi-transparent text or a logo onto a digital image, primarily used for **copyright protection** and **brand promotion**. By adding a watermark, you can effectively claim ownership of the image, prevent unauthorized use, or promote your brand when the image is shared.

Core Features：

• Dual-Mode Watermark: Supports adding both **text watermark** and **image watermark** (e.g., your logo), meeting different use case requirements.
• Advanced Text Control: You can add **multiple lines** of text watermark and independently set the content, font size, and color for each line.
• Flexible Layout Options: Offers multiple preset positions (e.g., bottom right, center), a unique **tiling mode** to cover the entire image with watermarks, and the most flexible **manual drag-and-drop** positioning.
• Style Fine-Tuning: You can freely adjust the watermark's global opacity and, in tiling mode, the rotation angle of the text.
• Pure Frontend Processing: All your images are processed locally in your browser and will never be uploaded to any server, ensuring your data privacy and extremely fast processing speeds.