Add watermark to images online free — text or image overlays with adjustable position, size and opacity. Protect your photos in-browser.
Image Watermark is a free online tool that adds text watermarks to images. Customize the text, size, opacity, and position freely — all processing happens in your browser with no images sent to any server. Useful for copyright protection, preventing content theft, and signing your creative work.
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Drag & drop an image or click to select
lock Your files never leave your device
How to use Image Watermark?
Upload the image you want to watermark.
Set the watermark text, size, opacity, and position.
Click apply and download.
Frequently asked questions about Image Watermark
Can I add an image watermark?
Currently text watermarks are supported. You can freely adjust the text size, opacity, and position.
How to get the most out of Image Watermark?
Set opacity to 30-50% for effective protection without obscuring the image content.
Diagonal repeating watermarks are harder to remove by cropping, providing better protection.
Use dark watermarks on light images and light watermarks on dark images for visibility.