How to easily hide your text messages into .jpg files:

First make a new path like:
c:hiding/

Put into the folder an normal photo like picture.jpg
next to this file you make a plain message.txt or .doc, whatever you like.

then the tricky part
convert the text file into an .rar format. For example with use of winrar.
next you want to open the command promd. Type the next line:

cd c:\hiding

copy /b picture.jpg + message.rar newpicture.jpg

just keep in mind that you have the good filenames.
Thats all!

Now you can open the file like an normal picture, but when you open it with winrar you can see the message!