It's because that's how Adobe has them ordered. It's the reverse of how GIMP and PS organize the layers. Also once added you can't change the order manually aside from re-adding the layers one at a time in the order you want. Not a very intuitive feature for their software in my opinion. Then again I could be doing it all wrong and just don't know how to use the software. Used Adobe Acrobat Pro 9 to make it, didn't know I could get a licensed version from my dad who is a retired community college teacher. The only other thing is dealing with file size seeing as it's five separate images, had to make sure my quality value on saving to .JPEG was lower then I'm used to.