Upscale/pxicel PNG for Large Format_OutPut Can Be PDF or PNG

I have a single 3 MB PNG that has to look razor-sharp when printed at 7 × 8 feet for a marketing display. Right now the resolution is nowhere near what a full-HD large-format printer needs, so I’m looking... (Budget: ₹600 - ₹1500 INR, Jobs: Adobe Illustrator, Adobe Photoshop, Graphic Art, Graphic Design, Illustrator, Image Processing, Image Upscaling, Logo Design, Photoshop, Print Design)