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Add image watermark

Add a text watermark over an image.

Processing happens in your browser; we do not upload your file.

ActiveImageFree
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About this tool

Add image watermark overlays text on a local image and exports the result from the browser.

How to use

  1. Select a PNG, JPG/JPEG or WebP image.
  2. Review the original name, type, size and dimensions.
  3. Enter the watermark text.
  4. Configure font size, color, opacity, position and margin.
  5. Choose PNG, JPG or WebP if the browser supports it.
  6. Add the watermark and download the image.

Use cases

  • Add a signature or name to an image.
  • Mark screenshots or work visuals.
  • Prepare an image with overlaid text without uploading it to a server.

Limits

  • WebP appears if your browser can export it correctly.
  • It does not promise real protection against copying or unauthorized use.
  • It does not include image watermarks or visual drag editing.

Privacy

Processing happens in your browser — we don't upload your files.

Common errors

  • A file that is not PNG, JPG or WebP.
  • Empty watermark text.
  • Invalid opacity, font size or margin values.

Technical notes

  • Export uses browser canvas.
  • The watermark is drawn with text, globalAlpha and calculated position.
  • Quality applies to JPG and WebP, not PNG.

Related tools

Technical details
ID
image-watermark
Slug
/en/tools/add-image-watermark
Backend
Not required
AI
Not required
API
Planned