Crease Removal For Poster Print

I have a high-resolution scan of a folded poster that I’d like to print at professional quality. The folds have left visible crease lines that run across several graphic elements—thankfully they miss all typography, but they do cut through illustrations and background textures... (Budget: £20 - £250 GBP, Jobs: Adobe Photoshop, Affinity Photo, GIMP, Graphic Design, Illustrator, Image Processing, Photo Editing, Photoshop, Print Design, Visual Arts)