Enhancement Book Cover for Print & eBook

I already have a finished cover in JPG/PNG format. It simply needs a professional once-over before release: • Remove a small AI/signature mark that appears on the artwork. • Upscale and clean the file so it can withstand high-resolution printing... (Budget: €8 - €10 EUR, Jobs: Adobe Creative Cloud, Adobe Illustrator, Adobe Photoshop, Book Cover Design, Creative Design, Graphic Design, Illustrator, Photo Editing, Photoshop, Print Design)