Here is a simple trick to hide files in an image file from the Command prompt :
Step1: Put some files in a folder say Test and compress the folder it into a zip file Test.zip
Step2: Place an image in the same location where the zip file is stored.
Step 3: Now open cmd in that directory where the files are stored (eg: D:\..)
For the purpose of demonstration, let us take the following files
1. filename1.png — image in which data will be stored.
2. Test.zip — Compressed zip file where the data actually is.
In the Command prompt type :
copy /b filename1.png+Test.zip filename1.png
Press Enter .
Your data is now hidden in the image file.
The sizes of image file increase accordingly. When you double click the image it displays as a normal image. To retrieve the zipped file just right click on the particular image and open it with WinZip/WinRAR, and the archived files will be visible now.You can also change the extension of the image file to .zip so that the hidden files can be accessed simply by double clicking on it.