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hows it going guys in todays lesson were going to be looking at how we can add some extra secret data to any ordinary jpeg file which means that if you want to send your friend a picture of a cat your friend will receive this picture of a cat but as soon as they look a little bit deeper into it theyre going to notice that somethings a bit different such as having a secret message in there and the way its going to work essentially so were going to have a function that creates the file so we have a normal cat jpeg here and its going to look like that and if we go to our main file were also going to be able to name the output image and then you can insert what kind of data you want inside here and if we go ahead and run this program its going to create this output image and its going to look exactly the same and thats the great part theres not going to be anything different about it when you look at it but when you go back to your main file and you decide to read the file you