About this tool
Stamp a text watermark onto any image with control over its position, size, color and opacity, rendered on a canvas in your browser and downloadable as a PNG — nothing is uploaded.
Frequently asked questions
Is my image uploaded to a server?
No. The image is read locally with FileReader and the watermark is drawn on a canvas in your browser; nothing leaves your device.
Why is there a faint shadow behind the text?
A subtle drop shadow is added so the watermark stays legible over both light and dark areas of the picture.