How to use this watermark tool:

1. Select one or multiple images using the button above or by dragging and dropping
2. Configure your watermark settings in the sidebar (text, logo, opacity, position, etc.)
3. Click "Preview Watermark" to see how it will look on your image
4. Click "Apply Watermark" to process your images
5. After successful watermarking, click "Download Image" to save your watermarked file