Really it's not too big, but it might create a loading issue for some people. You can try opening it in MS paint and resaving as the same file type without any editing, sometimes that cuts down on space for whatever reason. Saving as PNG is pretty good about preserving quality and cutting down on size too.
Is 15 MB too much image on one page? Should I think about compressing those?
15MB is larger than my entire site
...Maybe I'll consider thumbnails
My entire site is less than 2 MB (and I'm looking into ways to get more compression).
Asterion you are madness personified and I'm here for it.
Really it's not too big, but it might create a loading issue for some people. You can try opening it in MS paint and resaving as the same file type without any editing, sometimes that cuts down on space for whatever reason. Saving as PNG is pretty good about preserving quality and cutting down on size too.
for what 15 mb?!!!!