Add Watermark to Image Online — Local Text Watermark
Add a text watermark to an image online with adjustable position, opacity and quality, without uploading it.
Images are processed locally in your browser and are not uploaded.
About this tool
This tool draws outlined white text in one of four corners. Font size and padding scale with image width, and output follows the source JPG, PNG or WebP format.
How to use
- Choose an image and enter watermark text.
- Select corner, opacity and quality.
- Process locally and download the result.
Features
- Four corner positions.
- Adjustable opacity and output quality.
- Local canvas processing.
Common use cases
- Mark preview photographs.
- Add ownership text.
- Label draft graphics.
Common issues and tips
- Long text may extend beyond small images.
- Watermarks deter casual reuse but do not prove ownership.
Privacy
Watermarking runs locally. The image is not uploaded.
Frequently asked questions
Where can the watermark appear?
Top-left, top-right, bottom-left or bottom-right.
Can opacity be adjusted?
Yes, from 10% to 100%.
Is the original changed?
No, a new image is downloaded.