Using Animate

I have no idea what your original image looks like, but if the characters are on the jpeg, and you animate them, then at one moment they need to be "hidden" from the original image. Which means cleaning the jpeg from their remains.

But if the jpg is very clean, and the text on a single color space, you can do that with a simple rectangle of that color. If it's more tricky, a small cleaning moment in Photoshop will help.

Also. Hope people dont mind me asking one more question. Im getting a bit of a headache figuring out which apps to focus on. My main thing is family/kids vidoes that I will edit and I want to lean effects like lava, portals and lazer guns etc. I want to get into some animating but just basic things. 

To do all this I'm thinking I'll need to use premier pro (obviously) linked with after effects and then for the animaton stuff I'll use animate alongside premier pro. Some designs and logos I'll use illustrator. 

Does this sound like a common sense way to think of it all by learning those programmes?

Thank you.