Image Watermark 💧
Add a text watermark to images with adjustable position, font, color, and opacity.
Click to browse or drop an image here
JPG, PNG, WebPAbout the Image Watermark tool
The Image Watermark tool runs entirely in your browser. Enter the watermark text, pick a position from a 9-cell grid (top/middle/bottom × left/center/right), set the font size, choose a color, and adjust opacity from 0% (invisible) to 100% (solid). Click Apply to bake the watermark into the image. The watermark is drawn using ctx.fillText with globalAlpha for opacity and the appropriate textAlign/textBaseline for the chosen position. Nothing is uploaded; all processing is local.
How to use it
- Click the drop zone or drop an image file onto it.
- Enter the watermark text and pick position, font size, color, and opacity.
- Click Apply to render the watermark onto the image.
- Click Download to save, Reset to restore, or Clear to start over.
Frequently asked questions
Can I add multiple watermarks? Yes. Each Apply bakes the watermark into the canvas, so successive applies stack. Change the text or position between clicks to layer them.
How is the position calculated? The image is divided into a 3×3 grid. The text anchor is placed at the corresponding cell, with a small padding from the edge so the watermark stays visible.
What is the output format? The download is a PNG file, preserving detail without compression artifacts.
Does this tool upload my images? No. All processing happens locally in your browser.