How to use
- Select or drop an image.
- Type your watermark text and tweak size, opacity, colour and tiling.
- Download the watermarked PNG.
Frequently asked questions
Can I repeat the watermark across the whole image?
Yes — turn on the tile option to repeat the text diagonally so it covers the entire image.
Why is the output a PNG?
PNG preserves the watermark and image quality without extra compression artefacts.
Is my image uploaded?
No — the watermark is drawn locally on a canvas in your browser, so your image never leaves your device.
About this tool
Add a single or repeating diagonal text watermark to any image, with adjustable font size, opacity and colour. Runs fully in your browser — private, with no upload.