>>3578471I'm sure he'll be fine with it. I'm always flattered, and interested in results when someone edits my pics. I also know there exist photographers that hate that, but I'd say that they're rare. Anyway, just tell him you're doing it. He'll know for sure they're edited.
On a side note, did he give you raws or jpegs? If they are proper raws, they obviously can't be edited, and are as shot, it's standard practice to at least fix them a little.