How do i know if my photos are all jpg format?
Trying to upload an album from my MacBook Pro to Shutterfly. It only uploaded random pics from the album. When I asked Shutterfly, they said it's because some of the pics are not jpg. All were taken with the same iPhone and went directly to my laptop. How would some be one format and others a different format? How do I know what the formal is and how to I change if it somehow they are not jpg?
MacBook Pro 13″, macOS 10.13