Add a Watermark to Photos, One or a Whole Batch

A watermark has one job: make an image less useful to someone who might repost it without credit, while staying unobtrusive enough that the picture still reads. Those two goals pull against each other, and where you land is mostly a matter of three settings.

Opacity is the main one. Somewhere between 30 and 50 percent is the usual sweet spot: clearly visible on inspection, easy to ignore when looking at the photo itself. Below about 20 percent it disappears against busy areas and stops deterring anyone. Position is the second. A corner placement is tidy and conventional, but corners are also trivially cropped out, so for images you genuinely want to protect, a watermark nearer the centre or across a subject is far harder to remove without damaging the picture. The 9-point grid lets you pick either approach.

The third is what the mark actually is. Text is quick and works well for a name, a handle or a URL, and a URL has the advantage of being useful to anyone who sees the reposted image. A transparent PNG logo gives a more finished, branded result and is the better choice for client-facing work or a consistent visual identity. Both are supported here, with control over colour, font and size.

Select several files at once and the tool switches to batch mode, applying identical settings to every image and returning them as a ZIP. That is the practical way to mark up a whole shoot, since consistency across a set matters as much as the mark itself.

Everything renders on a canvas in your browser at the image's own resolution, so the export is full quality with no second watermark added by the tool. That local processing also means proofs, unreleased shoots and client previews, exactly the material people watermark, are never uploaded anywhere.