What this tool does
- Six positions, a size and an opacity: the size is a fraction of the image, so the setting behaves the same on a thumbnail and on twelve megapixels.
- The text is written in light with a dark outline: a white watermark disappears against a sky, a black one against a shadow.
- The tiled mode covers the whole image diagonally, the one used on a photo proof.
- The same watermark across a whole batch of images, in one gesture.
- EXIF metadata goes with the re-encoding.
What it does not do: A watermark is not protection. It can be cropped out, blurred or painted over. It says “this copy came from me” and it discourages careless use, which is already something. If an image must not circulate, the only measure that holds is not to send it.
Nothing is uploaded. Cut your network connection once this page has loaded: the tool keeps working. How to check it yourself.
The other tools
- Merge PDFs: Several files, one document, in the order you decide.
- Organize pages: Reorder, rotate, delete, duplicate: the whole plan.
- Extract pages: Pick pages, take them out into a document of their own.
- Delete pages: Remove pages while looking at them; they are not left under the file you get.