Print-Ready Image Resizing

I have a single photo that needs to be prepared for professional printing. I’ll supply the original file as soon as the project starts. Your job is to resize the image so it prints perfectly, optimise resolution and colour, and hand back a press-ready file... (Budget: £10 - £20 GBP, Jobs: Digital Art, Graphic Design, Illustrator, Image Processing, PDF, Photo Editing, Photoshop, Print Design)