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MyImageToolbox

Add Watermark

Client-side

Protect your photos with a text watermark: position, size, opacity, angle or a repeated pattern.

Runs 100% in your browser · If you allow preferences, this browser saves the watermark text, position, size, opacity, angle and style — never your images

Drag and drop your image here

or

JPG, PNG, WebP, GIF, BMP, AVIF, HEIC · up to 50 MB per file

Your images are processed in your browser and are not uploaded. You can also paste an image with Ctrl+V.

What does Add Watermark do?

A watermark is a visible mark – usually your name, brand or website – placed on top of a picture. It tells viewers who made the image and discourages people from reusing it without credit. Photographers use it on previews for clients, shops on product photos, and anyone can use it to mark a copy of an ID document as “Only for rental application”, which makes the copy useless for other purposes.

Options

  • Text: anything up to 120 characters, including © and emoji supported by your system fonts.
  • Position: one of the corners, the top or bottom centre, the middle of the image, or Repeated, which covers the whole picture with a diagonal pattern that is much harder to crop or retouch away.
  • Size is relative to the image width, so the same settings look identical on a small and a large photo.
  • Opacity, angle, colour, bold text and a soft shadow that keeps white text readable on light areas.

The preview updates as you type and move the sliders. Because sizes are proportional, the downloaded full-resolution image looks exactly like the preview.

Tips for effective watermarks

A small mark in a corner is discreet but easy to crop. For previews you send to clients or documents you share with a specific organisation, a repeated pattern at 25–40% opacity offers much better protection while keeping the content readable. White text with a shadow works on most photos; dark text suits bright, minimal product shots.

Private by design

The watermark is drawn in your browser and your images are never uploaded. This matters most for exactly the kind of files people watermark: identity documents, contracts, unreleased work and client photos.

How to watermark an image

  1. Drop your image or click Choose image.
  2. Type your text and adjust position, size, opacity, angle and colour.
  3. Click Add watermark and download the protected image.

Frequently asked questions

Can a watermark be removed?

Any visible mark can be retouched with enough effort, but a repeated, semi-transparent pattern makes it slow and obvious.

Is my text remembered?

If you allow preferences, the text and style are saved in this browser for next time. Your images are never saved.