Gerber files, i.e. technical drawings of printed circuit boards (PCB) can be typically saved to other gerber formats, as well as exported as images or PDF documents for publishing / sharing purposes.
This can be usually done with some sort of default export function in a program that works with such particular gerber files. Just keep in mind that the resulting image will be just that - a picture, and you won't be able to work with it in gerber software, but a graphics editor.