this is image steganography tool aka stego to use select your image and zip and drag them to the exe when it says open with stego realease and stego will hide the zip in the image the result image is named new-image you can use bmp gif ico jpg png tif but you have to use the correct stego version for each image file eg bmp = stego-bmp.exe you need windows for now i may work on stego or different operatin systems feel free to decompile stego for the source code stego is written in python 3 go to releases for the tool
tutorial