How to use Watermark
- Drop the images you want to watermark onto the page or click to select them.
- Choose Text and type your watermark, or choose Logo and pick a logo image.
- Set size, opacity and rotation, then pick one of nine positions or tick “Repeat over the whole image”.
- Check the live preview, then click Download, or Download all as ZIP for several images.
Supported formats
Accepts JPG, PNG, WEBP, GIF, BMP, AVIF, SVG, TIFF, HEIC, JPEG XL and PDF (first page). Saves as JPG, PNG or WEBP; “Original” keeps JPG, PNG and WEBP and saves other formats as JPG. Several images download as one ZIP, with “_watermark” added to each name.
Limits
One watermark design is applied to every image in the batch. Images keep their full size, so very large ones are limited by your device’s memory and the browser’s canvas size.
Privacy
Everything runs in your browser: your files are never uploaded to a server, and there is no sign-up.
Frequently asked questions
Can I add my logo as a watermark?
Yes. Choose Logo, pick an image (a PNG with a transparent background works best) and set its width as a percentage of the photo.
Can I watermark many photos at once?
Yes. Sizes are relative to each image, so photos of different sizes get the same look, and all of them download together as a ZIP.
How do I cover the whole photo with a watermark?
Tick “Repeat over the whole image”. The mark is tiled in staggered rows, tilted by −30° by default, and you can change the spacing.
Can a watermark be removed?
The mark is drawn into the pixels of the saved image, but a determined person can still edit it out. A large, repeated, semi-transparent mark is much harder to remove than a small one in a corner.
Are my images uploaded?
No. Watermarking runs in your browser and the images and logo stay on your device.