I was sent a .jpeg photo by gmail. It looks like it is pasted into the mail, but it also shows up as an attached file on the mail preview. Opening the mail however, the photo is in-line with the text.
I pressed on the photo and downloaded it, and then used exiftool (the Windows executable) to read the metadata. There was a bunch of metadata, like the date I myself downloaded the file, and also another date, Profile Date Time. If I have understood correctly, the profile date time is when the ICC profile is created, which is either when the photo was first taken, or after it has been transferred in some way (to put it as vaguely as I understand it). I know that the profile date time is very likely too recent to be the actual time the photo was taken, so I guess this implies the photo has gone through some kind of transfer, thus necessitating a new ICC profile. This is corroborated by the fact that the profile CMM type and primary profile where both marked as Apple Computer Inc., and I doubt they took the photo with a computer.
Among all this data, there was no data tag marked something like Date Photo Was Taken (not sure what the name would be).
So, I am left with the question; why did the date disappear? Perhaps the photographer sent the photo to the sender via a social media app like Messenger, and this then stripped the date from the metadata? Perhaps gmail strips the date from the metadata?
My question is this: what are the possibilities behind the disappearance of the date in the metadata?
As a side question, could I get the date if the photographer sent the photo from their original photographing phone's gallery to me via gmail?