Mass Watermarking software that is free?

is there a software that can do mass-watermarking on a folder of jpg?

my latest photos at the soccer matches have been widely appreciated and someone started "stealing" them, so i'll try to watermark them from now on.

what are your suggestions?

 

GIMP can do that
http://registry.gimp.org/node/21834

 

never had gimp external plugins properly working for me... i might check it anyway.

 

Here's a quick list I built; I have never used these (or any other watermarking software), but they all seem to have batch watermarking feature:
http://www.faststone.org/FSResizerDetail.htm
http://www.watermark-image.com/
http://www.alamoon.com/watermark-editor.html
http://www.uconomix.com/Products/uMark/Default.aspx
http://www.kigosoft.com/kigo-image-converter/
http://download.cnet.com/WatermarkLib/3000-2192_4-10963794.html

There are many more out there, but I have no experience with any of them.

 

Faststone works great, plus you can resize watermark and do alot with it and its FREE

 

you could probably also script something up using imagemagik

 

Another vote for Faststone here. I use it (and GIMP) regularly. Both of them are great pieces of software.