How to Inserting message in PNG file

• Select the PNG file will you use ( use a familliar picture) example :

• Create a TXT file which include your messase(save in same directory with your PNG file)

• Open the directory of your PNG file and TXT file with DOS Promt

I save my file in D:>hack/

open D:>hack/ in dos

• write : type your_txt_file.txt >> your_png_file.png  : enter

 my file is dunia.txt  and gambar.png

• try to open your PNG file with notepad after thet.

the result of this procces is :

look at the buttom of the file, you will look your message there..


note : use special caracter on the message begin and on the end of message.
Example : use {" and "}
{" Secret Message "}

then if you insert thet text message to png file, it will be :
%&^#ED@((*hnvttyu$%&(^$$ygu%&$7*&596%$7 {" secret Message "}

your friend open the PNG file, he know if your message is the text inside of {"...."}

Please read following post to understanding :
Create a Secret message with Encrypt it.