Which graphic format would be best for a photograph to maintain high quality?

Choosing the JPEG format for photographs is ideal for maintaining high quality while also balancing file size. JPEG is a lossy compression format, which means it slightly reduces the quality of the image to decrease the file size, making it easier to share and store. However, this reduction in quality is often imperceptible to the naked eye, especially in photographs that contain complex colors and gradients.

JPEG handles detailed images well, retaining color depth and allowing for the representation of photographic detail more effectively than formats like GIF, which is limited to 256 colors and is not suited for photographs. SVG and AI are vector graphics formats that are optimized for illustrations and graphic designs rather than raster images like photographs. While they can scale infinitely without loss of quality, they do not store photographic information in the same way that JPEG does.

Thus, for high-quality photographs, the JPEG format is the most appropriate choice due to its ability to balance quality and file size, making it the standard for digital photography.