Add a watermark to images
Stamp text or a logo onto photos with position, opacity, scale, rotation and tiling controls. Watermark a whole batch privately in your browser.
- Runs in your browser
- Files are never uploaded
- Free, no account
How to watermark an image
- Drop the photos you want to mark onto the box above — one, or a hundred.
- Choose Text and type your copyright line, or Image / logo and add a transparent PNG.
- Set the position with the 3 × 3 grid, then tune opacity, size, rotation and margin while the preview updates live.
- Turn on tiling if the mark needs to be difficult to crop away.
- Press Watermark and download the results individually or as a ZIP.
Everything scales with the image
Text size, logo size and the margin are all percentages of the image width, not fixed pixel values. That is what makes batch watermarking usable: a folder containing a 6000 px camera original and an 800 px thumbnail comes back with a mark that occupies the same proportion of each frame. A text size of 6% puts a legible copyright line along the bottom of almost any photo; 15–25% gives a bold signature across the middle.
Settings that work
| Goal | Position | Opacity | Size | Tiling |
|---|---|---|---|---|
| Discreet photo credit | Bottom right | 45–60% | 4–6% | Off |
| Portfolio branding | Bottom left or centre | 60–80% | 8–12% | Off |
| Proof / preview copy | Centre, rotated −30° | 25–40% | 18–25% | Off |
| Anti-theft protection | Any | 12–25% | 8–12% | On, 60–100% gap |
| “Confidential” document stamp | Centre, rotated −45° | 20–30% | 20–30% | Off |
Text or logo?
Text is drawn as vector type directly onto the full-resolution canvas, so it stays perfectly crisp no matter how large the photo is — there is no upscaling of a small graphic. Turning on the outline puts a dark stroke behind light text, which keeps it readable over both bright skies and dark shadows without needing a heavy drop shadow.
A logo is better when the mark is your brand. Use a PNG with a genuine alpha channel; a logo on a white rectangle will paste that rectangle onto every photo. If you only have a version with a solid background, remove it first, or export your logo at 2–3× the size you will display it so the downscale stays sharp.
How much protection does a watermark give?
Be realistic. A corner watermark is a credit line, not a lock — it can be cropped off in seconds. A tiled, semi-transparent mark across the whole frame is much harder to remove without visibly damaging the image, which is why stock-photo previews use exactly that pattern. Nothing you can do in a browser will survive a determined attacker with modern inpainting tools, so treat watermarking as attribution and deterrence rather than security. Keep unwatermarked originals somewhere safe — the mark is burnt into the pixels and cannot be undone.
Legal note on copyright notices
In most countries copyright exists the moment a work is created; a visible notice is not required for protection. It is still useful because it names the owner, makes accidental infringement harder to claim, and gives anyone who wants to license the image a way to find you. The conventional form is © followed by the year of first publication and the name of the rights holder — for example © 2026 Jane Doe.
Watermark last
Do your cropping, rotation and resizing first, then watermark, then compress. Marking before resizing means the mark gets resampled along with everything else, and heavy compression after marking keeps the text crisp while the photo takes the loss.
Questions
Text or logo — which works better?
A text line is quickest for a copyright notice and stays sharp at any size because it is drawn as vector text at full resolution. A transparent PNG logo is better for branding. Both can be tiled across the frame if you want the mark to be hard to crop out.
How do I stop the watermark being cropped off?
Turn on tiling. The mark repeats edge to edge in a staggered grid, so no single crop removes it. A low opacity of 15–25% keeps a tiled watermark readable without ruining the photo.
Does the watermark scale with the image?
Yes. Text size, logo size and margin are all expressed as a percentage of the image width, so a batch containing a 6000 px photo and an 800 px thumbnail gets a proportionally identical mark.
Can the watermark be removed later?
No — it is burnt into the pixels, exactly like every other watermarking tool. Keep your originals somewhere safe before you run a batch.