Hiding the text in an image is called as Steganography
For steganography All you need to download is a software called imagehide
after that extract and run the software you will get this screen
Just load an image file
then in the below space write your text and then click on write data
You can also decrypt the text with password and then encrypt again
Just send the image file to your friend and then tell him to download this software to read the text behind the image file
