I've tried quite a few watermarking tools over the years, and Watermark.pro is by far one of the simplest and most enjoyable to use. What immediately stood out to me is that everything runs directly in the browser, so I don't have to upload my images to a server or worry about privacy.
The interface is clean, fast, and intuitive. I was able to add text and image watermarks, create reusable presets, and process multiple images in just a few minutes. The layer system is surprisingly powerful while remaining easy to understand.
For anyone who regularly publishes photos online, this tool saves a lot of time and removes the frustration that usually comes with watermarking images.