Why does the file type not change when converting a .PDF to a .PNG?

Question

I was watching a video where the narrator stated that changing a file type from .PDF to .PNG doesn’t change the actual file type of the document. Could anyone explain why ?

In: 2

Answer 1

The file type portion of the name is just an indicator. If you are in the supermarket and take a loaf of bread off the shelf and place it in the meat department, the bread isn’t meat now, it’s still bread.