Add a Watermark to Photos — Free, Batch, No Upload
Add a text watermark to your photos in your browser. Control position, size, opacity and colour, then download. Your images are never uploaded to a server.
Your files never leave your device
Drag and drop files here
PNG, JPG and WebP · processed on your device
Watermarking without uploading
There is something absurd about the usual way this works: to protect an image you have not published yet, you upload a full-resolution copy to a free website. This tool draws the watermark on your own device, so the photo never leaves it.
Getting the settings right
Position
A bottom-right corner watermark is the convention for photography — it reads as a signature rather than a barrier, and it sits where viewers expect attribution. Centre placement is much harder to remove, so use it for proofs and previews you are sending to a client before payment.
Opacity
Somewhere between 35% and 60% works for most images. Below 30% the mark disappears against busy detail; above 70% it competes with the photograph itself. The shadow option helps far more than raising opacity when your images have varied backgrounds.
Size
Text size here scales with the image rather than using fixed pixels, so a watermark set on a 6000-pixel photo looks the same on a 1200-pixel one. That consistency matters when you are stamping a set that will be viewed at different sizes.
What to actually put in the watermark
- Your name or studio name — the most useful thing, since it is what someone searches for.
- A website or handle — turns the watermark into a route back to you.
- A copyright symbol and year — carries little legal weight on its own, but signals intent clearly.
- Keep it short. A long line has to be small to fit, and small watermarks are easy to crop out.
The honest limits of watermarking
A watermark deters casual copying and gives you attribution when an image spreads. It is not real protection: content-aware fill removes a corner mark quickly, and anyone determined enough will manage it.
The measures that actually work are practical rather than cosmetic — send low-resolution previews until you are paid, keep your originals with intact EXIF data as evidence of authorship, and register work formally if it has commercial value. Treat a watermark as a signature and a speed bump, not a lock.
Frequently asked questions
Are my photos uploaded?
No. The watermark is drawn onto your image using the Canvas API in your browser. The photo is never transmitted, which is the point — watermarking usually means the image is not public yet, so uploading it to a stranger's server to protect it is a contradiction.
Does a watermark actually stop image theft?
It stops casual reuse, which is most of it. Someone can crop or clone out a corner watermark in a few minutes, so a determined thief will get past it. A watermark across the centre is far harder to remove but ruins the image for legitimate viewing — most photographers accept the corner trade-off and rely on lower-resolution previews as the real defence.
Will watermarking reduce my image quality?
The watermark itself is drawn losslessly, but saving re-encodes the file. Output uses high quality settings, so the difference is not visible in normal viewing. Always keep your unwatermarked original — the watermark is permanently baked into the exported copy and cannot be removed later.
Can I use a logo instead of text?
Not yet — the current version handles text watermarks, which cover the vast majority of uses. You can stamp as many images as you like in one go and download them together as a ZIP.
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Last updated September 25, 2026