I'll second the recommendation for Irfanview. The batch facility is(Wolf, Peter didn't mean "GIMP is for someone with low computer skills",
but his _requirement_ was/is.)
I'd use Irfan for even those now!
Do give Irfan a look: shift-G to get at the colours menu, (draw a boxXnView is looking good, and though there is a
facility to crop at fixed ratios this ratio cannot
be locked in for a session.
and) Ctrl-T for the text one. (Ctrl-Z to undo and try again, as is
common for many Windows softwares.) It's small and (thus?) fast.
fantastic, too. I've used a single batch operation to resize (with
crop), adjust gamma and convert format, to several hundred images
in one go.
Wouldn't be without it.