Hide private files in JPEG pictures

Requirements :
- Winrar
- An jpeg image file
- A file (whatever it is)

Let's say I want to hide a file (secret.pdf) into an image (lisa.jpeg)

* Create a folder on your hard drive, i.e. C:\Hide and put in all of the files that you want to hide into that folder include the image file.

* Now select all of the files that you want to hide, right-click on them, and choose the option to add them to a ".rar" file. Only select the files you want to hide, not the picture.
Name it whatever you want, i,e. “secret.rar”.
* Now you should have a folder that looks something like this with files, a JPG image, and a compressed archive:

* Click on Start, and then click on Run. Type in “CMD” without the quotes and press Enter. You should now see the command prompt window open.
Type in “CD \” to get to the root directory. Then type CD and the directory name that you created, i.e. “CD Hide“.

* Now type in the following line: “copy /b lisa.JPG + secret.rar lisa.jpg” (without quotes) and press Enter.
You'll see this :

The picture file will have been updated with the compressed archive inside! You can actually check the file size of the picture and see that it has increased by the same amount as the size of the archive.

Last, delete the secret.pdf (original file) & secret.rar except lisa.jpg

Two simple ways to access the file :
-change "lisa.jpg" extension to lisa.rar and open the file using winrar.
-right-click on the jpeg file "lisa.jpg" and choose Open With and then scroll down to winrar.