Image Watermark Tool
Add text or logo watermarks to your images to protect copyright and brand your photos. Customize position, size, opacity, and color. Download watermarked images instantly.
- Images never leave your device
- No server upload required
- Works completely offline
- No login or signup needed
How It Works
Upload an image and choose between text watermark or logo watermark. For text watermarks, enter your text, choose font, color, size, and opacity. For logo watermarks, upload your logo and adjust size and opacity. Position the watermark anywhere on the image (corner, center, or custom position). The tool renders the watermark using HTML5 Canvas API and provides instant preview. Download the watermarked image as PNG or JPEG. All processing happens in your browser — your images are never uploaded to any server.
Frequently Asked Questions
Can I add a logo watermark?
Yes! Upload your logo image and the tool will overlay it on your photo with adjustable opacity and size.
Can I control watermark transparency?
Yes! Use the opacity slider to make the watermark more or less transparent (0-100%).
Where can I position the watermark?
Choose from presets (top-left, top-right, bottom-left, bottom-right, center) or drag to custom position.
What image formats are supported?
Upload: JPEG, PNG, WebP, GIF. Download: PNG (with transparency) or JPEG.
Can I watermark multiple images?
You can watermark images one at a time. After downloading, upload the next image.