Add a Watermark to Your Images
Protect your product photos from being copied by stamping them with your shop name or logo. Load one image or a whole batch, add a text watermark or upload your logo, then fine-tune the size, opacity, rotation and position — or tile it diagonally across the entire picture. The preview updates live on a canvas, and you can download each watermarked image in one click. Everything runs on your device, so your photos are never uploaded to a server.
Image to watermark
Your images are processed on your device and are never sent to any server.
No image yet
Add a product photo, then add a text or logo watermark and download it.
Everything runs in your browser. Your images never leave your device.
How to use
- Drop or select one or more product images to load them onto the canvas.
- Pick a watermark type: type your Text, or upload a Logo (PNG with transparency works best).
- Adjust the size, opacity, colour and rotation until it looks right.
- Choose a corner or centre position from the 3×3 grid, or turn on Tile to repeat it across the whole image.
- Click Download image to save the current photo, or Download all for the whole batch.
Features
- Text or logo watermark, switched with a single tab
- Live canvas preview that updates as you tweak every control
- Nine-point position grid plus a diagonal tile / repeat mode
- Fine control over size, opacity, colour and rotation
- Batch mode: watermark many photos with the same settings and download them all
- 100% in-browser — your images and logo never leave your device
Frequently asked questions
How do I add a watermark to a product photo?
Load your image, choose the Text tab to type your shop name or the Logo tab to upload a logo, then set the size, opacity and position. The preview updates live, and Download image saves the watermarked result as a PNG or JPEG.
Can I repeat the watermark across the whole image?
Yes. Turn on the Tile / repeat option and the watermark is stamped diagonally across the entire picture. This makes it much harder for someone to crop out your branding and reuse the photo.
Can I watermark many images at once?
Yes. Select several images when you upload and they appear as thumbnails. Your watermark settings apply to whichever image you are viewing, and Download all exports every image in the batch one after another.
Are my images uploaded to a server?
No. This tool uses the Canvas API to do everything locally in your browser. Your product photos and logo are never uploaded, so they stay private on your own device.
What file formats can I use and export?
You can load PNG, JPG and WebP images up to 25 MB, and a transparent PNG logo. The watermarked image is exported as a JPEG when the source was a JPEG, otherwise as a PNG.