Add Watermark to Image Online for Free
Protect your images with professional watermarks using NanoImage's free online tool. Add text watermarks with customizable font size, color, and opacity, and position them anywhere using our intuitive 9-grid placement system or tiled pattern mode. Perfect for photographers, designers, and content creators who want to protect their work from unauthorized use. Adjust the transparency from 10% to 100% to find the perfect balance between visibility and subtlety. All processing happens locally in your browser — your images never leave your device. Supports JPG, PNG, WebP and more.
Drag & drop your image here, or click to browse
Supports JPG, PNG, WebP, GIF, BMP
How to Use
- 1
Upload your image by dragging it into the upload area or clicking to browse.
- 2
Enter your watermark text, set the font size, color, and opacity. Choose a position from the 9-grid selector or enable tiled mode.
- 3
Preview the watermarked image and click "Download" to save.
Frequently Asked Questions
Can I add an image watermark instead of text?
Yes! Switch to "Image Watermark" mode and upload a logo or image to use as your watermark.
How do I make the watermark more subtle?
Reduce the opacity slider. A value of 20-30% creates a subtle watermark that's visible but doesn't distract from the image.
Can I tile the watermark across the entire image?
Yes! Enable the "Tiled" position option to repeat your watermark across the entire image in a grid pattern.
Will the watermark be permanent?
Yes, once applied and downloaded, the watermark is permanently embedded in the image pixels. Keep your original file if you need an unwatermarked version.