On January 7, 2010 at 18:17, Lowpro said...
IrfanView should do the trick.
http://www.irfanview.com/It's freeware and supports batch resizing, including the file format you want the resulting image files saved to.
Yeah Irfanview is fantastic to do this task. Here is a howto
[Link: ofzenandcomputing.com]