Does anyone know of a batch image resizing program that i can set to only reduce one axis of an image?

For example, lets say i have a bunch of 480x749 images, i only want to resize the height of the images to 680 but still leave the width at 480.

Anyone know of something that can do this?

I just tried creating a batch in Photoshop but for some reason it didnt seem to work

Regards,

Lee