I am sorry if this question sounds stupid but it is very, very important for me to know!
I am researching some photographs that were taken in the early 2000's with a point and shoot camera- the camera stored the photos onto a floppy disk, which were the loaded onto a computer. I need to know if these photos are authentic- taken when they are claimed to have been taken and whether or not they have been altered.
Is the fact that I received the files in .jpg format indicative of any possible tampering? I know photographs taken with newer cameras usually download as a ".tiff" file, but I am dealing with an older camera. Some of the photos had a .png extension. They all supposedly came from the same camera "the .jpgs, and the .pngs."
Is .jpg a native file format, meaning, if transferred directly from a camera to a computer, the images would appear in that exact file format? Or, does the fact that they are .jpg files show that, after they were uploaded onto the computer, they were uploaded, transferred to an editing program, (possibly altered), and then exported as a .jpg file?!
Specifically referring to a "DIGITAL MAVICA" "point and shoot camera".