How to watermark your photos
A watermark only works if it survives the reasons someone would want it gone, a screenshot, a right-click save, a re-post with the credit stripped off. Here's how to stamp a batch of photos with text or your own logo, at whatever strength keeps the photo underneath visible.
Why a watermark still matters after the shot is taken
Anyone can screenshot a photo, save an image straight off a page, or repost one with no credit attached. A watermark doesn't stop any of that, nothing running entirely in a browser tab can. What it does is travel with the file once it's copied, so a screenshot of a watermarked photo is still visibly, unavoidably credited, in a way an uncredited caption in a social post never is.
That's the realistic case for watermarking: not preventing copying, making the copy still say whose it is. A photographer sharing previews before a client pays. A small shop stamping its own product photos before a reseller lifts them. Anyone posting work publicly who wants their name attached to it wherever it ends up.
Text or logo, and why the choice matters
A text watermark is fast, a name, a handle, a short line, drawn with an outline so it stays legible over any background. It costs nothing to set up and works the moment you have something to type.
A logo carries more weight because it's instantly recognisable at a glance, in a way a small line of text at the edge of a photo isn't. It costs a little more to set up, since you need an actual logo image ready to upload, but once you have one it applies to every photo in a batch exactly the same way a text mark would.
Neither is more correct than the other. A one-off share might only need a name. A photographer's whole gallery is worth the extra step of a proper logo.
How to add a watermark in your browser
Open the watermark tool and pick Text or Logo image at the top. Text mode takes a line typed straight into the field. Logo mode needs a logo image chosen first, a small picker lets you select one from your device, and it stays selected while you drop as many photos as you want stamped with it.
Pick a position from the nine-cell grid, corner, edge or centre, then set size (for text) or scale (for a logo, as a percentage of the photo's width) and opacity. Lower opacity keeps more of the photo visible underneath the mark; higher opacity makes the mark itself the more obvious thing in the frame.
Drop your photos and each one comes back stamped the same way. Nothing about the photo or the logo is uploaded at any point, disconnect from the internet after the page loads and it still works.
Tiling, and when it's worth using
A single stamp in one corner is the normal choice, and it's easy to crop out of a re-share, just trim the edge and the mark is gone along with it. Tiling repeats the logo across the entire frame instead, at a size and spacing that scale with the logo itself, so removing the mark means removing most of the photo too.
It's a heavier-handed look, worth using for a preview image you specifically don't want lifted whole, and skipping for a finished shot where a single corner credit is enough.
Choosing opacity and position that don't fight the photo
A watermark set too strong competes with the photo for attention, which defeats the purpose of sharing the photo in the first place. Start low, somewhere that reads clearly on close inspection but doesn't jump out at a glance, and only raise it if the mark keeps getting lost against a busy background.
Position follows the same logic as a caption: corners are the safest default because they're usually the least busy part of a frame, and a mark sitting across a face or the main subject undercuts the photo it's meant to be protecting.
What a watermark is not
Stamping a mark onto visible pixels is not a copyright registration and doesn't prove ownership on its own, any more than writing your name on a printed photo would in a legal sense. Treat it as a visible deterrent and a credit line travelling with the file, not as a substitute for actually registering or licensing your work if that matters to you.
It also won't survive everything. A determined crop can remove a single corner stamp, and a screenshot of a tiled mark still shows the photo underneath, just with the mark attached. The realistic goal is making casual, uncredited reuse less likely, not making reuse impossible.
Quick questions
Can I watermark with my own logo instead of text?
Yes. Choose a logo image in the tool and it's stamped onto every photo you drop, at the position, size and opacity you set.
Does a watermark stop people from copying my photo?
No. It's a visible deterrent and a credit line that travels with the file, not a technical barrier. Someone can still screenshot or save the photo, the mark just stays attached when they do.
What does tiling do, and when should I use it?
It repeats the logo across the whole photo instead of stamping it once in a corner, making the mark much harder to crop out. Use it for previews you don't want lifted whole; a single corner mark is usually enough for a finished photo.
How do I stop the watermark looking too heavy?
Lower the opacity slider. A lighter mark still credits the photo without competing with it for attention.
Is my photo or logo uploaded anywhere?
No. Both are processed entirely in your browser. Disconnect from the internet after the page loads and it still works.
Can I watermark a whole batch of photos at once?
Yes, up to 200 per batch. The same mode, position, size and opacity apply to every photo you drop.
Does watermarking protect my copyright legally?
No. It's a visible credit and deterrent, not a registration. If legal protection matters, that's a separate step from stamping a mark on the image.
Converters
The converter on this page handles every conversion this guide talks about.