Adding File Name to Image with Batch Command

I've written an action using "Fit Image" to resize a folder of high resolution JPG files to 800 pixels for a slide show presentation. I'd like to have the file name placed on the image somewhere, lower left corner, etc. Is there anyway to do this with Photoshop? I'd like to write it into my action so I can batch out a folder of 600+ images.

there is a nice Java Script ( can be embeded in an action ) for doing that , at Adobe studio Exchange ( for free ! )