How to use it
Choose one picture or several at once. Type your watermark text (your name, your website or a © line), then pick a font, color, size and opacity. Tap a dot in the position grid to put it in a corner, on an edge or in the middle, or choose Tiled to repeat it diagonally across the whole picture. Add a logo too if you like: it has its own size, opacity and position.
The preview shows the picture you selected. The same settings go on every picture, and sizes are measured against each picture’s width, so the watermark looks the same on big and small photos. Download one picture, or all of them as a ZIP. Pictures are saved at their full size.
Tips
A corner watermark at 40 to 70% opacity credits you without spoiling the photo. If you want to make copying hard, use Tiled or put it in the middle: a corner mark is easy to crop off. White text with a shadow reads on most photos; switch to black on very bright ones. For a logo, a PNG with a see-through background looks far better than one with a white box around it.
Questions
Is my picture uploaded? No. Your photos and logo are opened and drawn inside your browser and never leave your device. Only your settings (text, font, sizes, position) are remembered for next time; the pictures and the logo are not. Does a watermark stop people taking my photo? Not completely. It makes credit clear and copying more work, but a determined person can remove a small one. Can I use an iPhone HEIC photo? Browsers can’t open HEIC; share it as JPG first, or use the Image Converter. Why is my PNG file so big? PNG keeps every pixel exactly; choose JPG for photos.