Where is EXIF data stored in an image file?

jj1984

Member
Hello,

There is often metadata stored with image files that are produced by digital cameras, things like camera model, GPS information, aperture size, whether the flash was on, etc.

Where is this info stored?

Is it in a header at the front of the file or a footer at the end?

If so, is it possible to open an image file that has EXIF metadata stored in it in a hex editor, copy the EXIF data, and paste it into the appropriate area of another image file thereby faking an image's metadata with that of another?

What do you guys think?
 
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