Image Watermark
Add text or image watermarks to your images.
Drop your image here
or click to browse · max 50 MB
Settings
wasm-vips (~5MB) will be downloaded on first use and cached by your browser.
Image Watermark
Add text watermarks to images with customizable position, font size, and opacity. Protect your images or add branding.
What is it used for?
- Protecting photos from unauthorized use
- Adding branding to portfolio images
- Watermarking preview versions of stock photos
- Adding copyright notices to images
Step-by-Step Guide
- Upload your image
- Enter watermark text
- Select position from the 9-point grid
- Adjust font size and opacity
- Click Convert and download
How it works
Upload an image, enter watermark text, choose position and styling, then click Convert. wasm-vips renders the text overlay onto the image.
Tips & Best Practices
- 50-70% opacity makes watermarks visible without being too distracting
- Bottom-right is the most common position for watermarks
- Larger font sizes are harder to remove
Frequently Asked Questions
Can I add an image/logo watermark?
This tool supports text watermarks only. For logo watermarks, use a dedicated image editor.
What opacity should I use for watermarks?
50-70% opacity makes watermarks visible without being too distracting. For stronger protection, use 80-90%. For subtle branding, 30-40% is sufficient.
Where should I place my watermark?
Bottom-right is most common for branding. Center is best for preventing unauthorized use. Avoid corners only - they can be easily cropped out.
Privacy & Security
This tool uses wasm-vips (libvips compiled to WebAssembly). The WASM binary (~5MB) is downloaded on first use and cached by your browser. All image processing happens locally on your device - your images are never uploaded to any server. This makes it safe for sensitive, private, or confidential images.