Lightroom 3 is greatly improving the watermarking. The beta is free to use.


However. lightroom does not change the original image, you really do not want it to, in case you change your mind, or something does not work the way you expected. If you are starting out with RAW, use something like lightroom. When you export your images to jpegs, they can be watermarked automatically, as many as you want.


If you are starting with jpeg, and just want to watermark the images, lightroom will do it, but so will $50.00watermark factory software.