Step 2: Copy the text(which you want to hide) to clipboard, by writing it in notepad and selecting it, right clicking it, then copy.
Step 3: Open CMD, by going to Start — All Programs — Accessories — Command Prompt.
Step 4: In CMD type :
echo “your text to hide” >> “image.jpg”.
Step 5: Now right click on image.jpg — Open with — Notepad. You can see your hidden text at the end of your image file contents.
Using this method you can sent personal message or private things to others, make your personal diary which no one can read or do whatever you like..:)