Where should a watermark go?

The bottom right corner is the convention because it intrudes least, but it is also the easiest to crop away. If protection is the real goal, run it across the middle or tile it; if attribution is the goal, a corner is enough.

What opacity should a watermark have?

Between 30% and 50% usually reads clearly without dominating the image. Below 20% it tends to disappear on a busy photograph, and above 70% it starts competing with the picture itself.

Is my image uploaded to a server?

No — the image is read and processed entirely in your browser. That matters especially for a watermarking tool, since an image you want to protect should not have to travel to someone else's machine to get marked.

Image & Canvas

Add a Watermark to a Photo

Pick an image, type your watermark, set its position and opacity, then download the result.

Choose or drop an image PROCESSED ON YOUR DEVICE · NEVER UPLOADED Watermark text

Position Size 4% Opacity 40% Rotation 0° Colour

// NO IMAGE YET

What this is

A watermark tool adds text over an image as a mark of ownership or attribution. The value is in the balance: too faint and it is cropped out or ignored, too heavy and it ruins the image it was meant to protect. The opacity and position controls exist so you can find the middle, and a tiled mode is there for images that genuinely must not be reused without permission.

How it works

A corner watermark is the most common and the easiest to remove — trimming a little off the edge is enough. One running across the middle is much harder to take out without damaging the image, and tiling makes removal impractical. Choose according to how much risk you actually face.

A watermark does not prevent copying; it makes copying visible. For genuinely valuable photographs, treat it as attribution that travels with the image wherever it is shared, not as a lock.

How to use it

Choose an image The file is read on your device and uploaded nowhere.
Write and place your watermark Set position, size, opacity, rotation and colour until it balances.
Download at full resolution The result is reprocessed at your image's original size, not the preview's.

Common questions

Where should a watermark go?: The bottom right corner is the convention because it intrudes least, but it is also the easiest to crop away. If protection is the real goal, run it across the middle or tile it; if attribution is the goal, a corner is enough.
What opacity should a watermark have?: Between 30% and 50% usually reads clearly without dominating the image. Below 20% it tends to disappear on a busy photograph, and above 70% it starts competing with the picture itself.
Is my image uploaded to a server?: No — the image is read and processed entirely in your browser. That matters especially for a watermarking tool, since an image you want to protect should not have to travel to someone else's machine to get marked.

Notes

Images are processed in the browser and never uploaded.
A watermark makes copying visible; it does not prevent it.