Thank you for your reply. However I couldn't open the file with the editor either, same message about the marker being missing before the JPG SOS marker which I don't understand. What I have done now is download a free file converter and converted the JPG to a BMP file and now it does show in Photoshop but I don't know if I have done the correct thing. The images were sent to my iPhone from a Galaxy S8 phone via What's App and my son suggested that they may have been encrypted? I have received images via What's App from other iPhones and they have been OK. Glenys
... View more