Proofreading means polishing the surface of your text, i.e. spelling, grammar, typos and so on. That's useful if you have a text that you're satisfied with but you feel just needs that final touch. I proofread for publishing houses on a regular basis.
Text revision adds a little more depth. That includes style, word choice, adapting a text to a target group, linking a text logically, writing headers and so on.
I proofread and revise both Swedish and English texts.