Hide information behind the pic.
1. take the image...in which you want to hide the info.
ex: Manjot.jpg
2. take any file that u want to hide in the image Manjot.jpg
3.select both the file and compress it with winrar and try to do it in the location desktop so its easy for you to do the process and you will get desktop.rar file in desktop
4. open command prompt
5.type {cd desktop} without brackets to create directory desktop.
it will show some what like
c:\users\your pc name\desktop>
6.now type the following commands in the desktop
copy/b Manjot.jpg(its my image name)+desktop.rar(it contains both image and data on desktop u have just created) MJ.jpg(file name in which u want the resultant image file containing ur hidden data)
ex:c:\users\your pc name\desktop>copy/b Manjot.jpg+desktop.rar Mj.jpg
7. now you can see the resultant image in your desktop if you want to see the file contained in the image extract it using winrar.