What happens when user has manually added his name to the EXIF data?
The following table shows Exif data for a photo made with a typical digital camera. Notice that authorship and copyright information is generally not provided in the camera's output, so it must be filled in during later stages of processing. Some programs, such as Canon's Digital Photo Professional, allow the name of the owner to be added to the camera itself.
https://en.wikipedia.org/wiki/Exif#Related_standards
What happens when user has manually added his name to the EXIF data?
https://en.wikipedia.org/wiki/Exif#Related_standards