Stamp a protective line of text across a batch of images, with control over position, size, opacity and colour.

When you need this

A watermark is not theft prevention; it is attribution. Anyone determined to remove one will remove it. What it does reliably is keep the question of who made a picture attached to the picture as it travels. That is enough for portfolio images, slides that get passed around, and product photos you list for sale.

What gets added is text. You choose one of nine positions and adjust the size, opacity and colour. Pale text at low opacity disappears on a bright photograph, so colour and opacity need to move in the opposite direction to the brightness of the image underneath.

To put the same mark on many images, use Batch edit. There the watermark is applied after resizing, which means the text comes out the same size on every file even when the originals were not.

How to use it

1. Add your images.
2. Type the text — usually a brand name or handle.
3. Set the position, size and opacity.

Your files are never uploaded

Everything runs inside your browser. Because the image never reaches a server, we cannot store it or look at it. That difference matters when the file is company material or a personal photo.

Frequently asked questions

My watermark is hard to see.

White text vanishes on a bright photo. Switch to black or raise the opacity. A faint shadow is added behind the text automatically.

Can I use a logo image instead?

Not yet — text only for now.

Can the watermark be removed later?

Not from the saved file. Your original is untouched, so keep it somewhere safe.

Is it free?

Yes. No account, no payment, no usage limit.

Are my files uploaded?

No. Everything happens inside your browser. A page that is already open keeps working even if you go offline.

How many images at once?

There is no count limit. Speed depends on your own device, because your computer does the work rather than a server.