SDL_image and sprites in one big image

Hi, I’ve got a question again about SDL_image. Now I’ve stumbled into a
problem with sprites in one big pictures used in my bitmap font system. In
my bitmap font system, I loaded the picture in a temporary local
SDL_Surface. Then I created an empty surface and blit the SDL_Rect region
of the sprite into it. Then I free the temporary surface. If I were using
SDL_image and saving all the sprites into RWops pointers (and converted
back into surfaces in the drawing/rendering method), can it be done?

Thanks in advance.