Watermark Adder
Add text or logo watermarks with tiling, opacity and rotation.
Files and text are processed locally in your browser. Tools that must reach the network say so explicitly.
About the Watermark Adder
Stamp a text or logo watermark across your images to protect them before sharing. The Toolcenter Watermark Adder controls opacity, size, rotation, colour and tiling, or places a single mark in a chosen corner. The watermarked image is generated in your browser and never uploaded.
How to use it
- 1Drop the image you want to watermark.
- 2Choose a text mark or upload a transparent logo.
- 3Adjust opacity, size, rotation and tiling.
- 4Download the watermarked PNG.
Key features
- Text or image/logo watermarks
- Opacity, size and rotation control
- Tile across the whole image or place in one corner
- Custom colour for text marks
- Local processing, no upload
Frequently asked questions
How do I make a watermark cover the whole photo?+
Enable “Tile across image” — the mark repeats diagonally so it cannot be cropped out easily.
Can I use my brand logo?+
Yes. Switch to logo mode and upload a PNG with transparency for the cleanest result.
Does the tool add its own watermark?+
No. Only the watermark you configure appears on the output.
Is my image uploaded?+
No. The watermark is drawn on a browser canvas and stays on your device.
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