Viewing a single comment thread. View all comments

capilot t1_ixv2kbw wrote

Reply to comment by AtHomeInTheUniverse in ELI5: In recent years, new formats like webp and jfif have started popping up. However, if I rename them to gif or jpeg, they still work. How can it be that renaming the extension doesn't ruin the image format? Why do they even exist then? by Luthemplaer

Fixed link: https://en.wikipedia.org/wiki/List_of_file_signatures

Fun fact: I've encountered jpeg files mis-labeled as ".gif" and vice-versa. A lot of software has no trouble with this at all, since it looks at the magic number. Your web browser for example.

9