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Image Watermark
Add a text or logo watermark to one image or many.
Free tools that run in your browser. Nothing you type, open or create is uploaded to NerdBible or anyone else.
A PNG or SVG with a transparent background works best.
The same watermark is placed on every image at the same relative size and position, so it looks alike on large and small photos. Saving is done at full resolution. A watermark discourages casual copying, but it can be cropped or edited out; a repeated, semi transparent one across the whole image is the hardest to remove.
How to use it
- Choose or drop one or more images.
- Type your watermark text, or switch to Logo image and choose a logo file.
- Set the size, opacity and rotation, then pick a corner or the centre, or tick Repeat across the image.
- Check the preview, then download each image or all of them in one ZIP file.
Questions
Are my photos uploaded?
No. The watermark is drawn by your browser on your device, and the files are saved straight from there.
Is the photo quality reduced?
Images are saved at their full size. JPG and WebP are saved at high quality (92), which is visually the same for photos; choose PNG if you need no compression at all.
Is the location and camera data kept?
No. The new copy is redrawn from the pixels, so EXIF data such as GPS position is not carried over.
What logo file works best?
A PNG or SVG with a transparent background, so only the logo itself shows. A JPG logo will show its rectangular background.