I took several photos of a drawing that a friend had made, but the quality of the photos is not very good, so I need software that can produce enhanced images by combining a stack of images of the same scene that were taken during a short period of time.
OP still didn’t describe in which aspect the images are bad.
Stacking (at least with astro software) only reduces noise, but even with stuff like focus stacking you can’t turn a bad picture magically into a great one.
Especially since you need to plan that in advance and shoot under specific controlled conditions.
There’s a reason why I always shoot in the shutter roll mode with my digital camera. When I have 5 pictures at once, there’s always at least one that is sharp.
Playing safe is the number one rule of photography, hence why we always underexpose for example, since you can always rescue a too dark image, but if it’s blown out white, you can’t do anything.
Same with camera shake, focus, and so on. Even with all the AI removed and stuff, you just can’t rescue some pictures.
I wrote a second comment in the section here with better instructions.