[custom_adv]
If you only have an earlier version of Adobe Photoshop, like CS3 or CS4, theoretically they can work because the functions we are going to use are basic functions in Photoshop. However, if you use CS3 or CS4, the user interface would be very different from the later version. As a result, it will be a little difficult to follow the steps here and you may need to find those corresponding functions by yourself.
