About Image Watermark Tool
Our Image Watermark Tool lets you add custom text or image watermarks to your photos instantly. Adjust position, opacity, font size, color, and rotation with a live preview. All processing happens locally in your browser, so your images never leave your device—perfect for photographers, designers, and content creators who need to protect their work.
Features
- Add text or image watermarks to photos
- Adjust position, opacity, font size, color, and rotation
- Live preview before applying the watermark
- Supports JPG, PNG, and WebP formats
- 100% local processing - images never uploaded
Frequently Asked Questions
Are my images uploaded to a server?
No. All watermark processing happens entirely in your browser using HTML5 Canvas, so your images never leave your device.
Can I use my own logo as a watermark?
Yes, you can upload a PNG or JPG image as a watermark and adjust its opacity, position, and size on top of your base image.