Hi do u mean the (©year name thing)? if yes> i use irfanview to batch process cos no photoshop. Download the programm and under batch conversion, choose advance option,checked overlay text, click setting, add ur text. Tips> for the y-coord, x-coord,width and hieght, open 1 pic, drag a rectangle on the place u u want ur sig, copy down the coordinates, then key them in the batch conversion>add overlay text coordinate, easy.
Just downloaded the program 2 days ago, recommended by fellow cs-er also.