Using StegHide. You can embed or extract a file inside an image. ( ' .jpg', ' .wav', ' .bmp' and ' .au' format. Other format is not working.)
Embedding "example.txt" inside a jpg image
Viewing Info of an image
Extracting an image
Depends on your linux distro
pkg install git -y
cd zStegHide
bash setup.sh
bash steghide.sh
Note:
This simple tool is for someone who doesn't know how to use steghide pkg and it's commands.