You can download the basic template here.  Its in a .psd file which is a photoshop file.  It can be opened in Adobe Phototshop.  But I have attached links to Gimp and Phtopea which are free programs.  The program on the tutorial video I am using Phtopea, its very easy to use.  Especially since all we are doing is swapping out images and then printing.  There is an additional step using Phtopea which is that you must download the page to your local device, which means that you can also prep and print for a tablet or mobile device, not just a Mac or PC.

Download The Zip of all files to your system.