Wednesday, April 29, 2009

How to hide files in JPEG images

Hmm. Ever wondered why some low res JPEGs has such enormous sizes? Well, here is the reason. There is a WinRAR archive inside the JPEG. Here are the steps to teach you how to do one yourself.
  1. Move the files you want to archive into a new folder. I put mine into C:\New Folder. Try to keep it short for future use.
  2. Right click on the file that you want to get archived, and select "Add to archive"
  3. The RAR archive should appear by now.
  4. Open up the Command Prompt. Start - Run - command. Type cd.. twice or until you get to the C:\ drive. Then type in cd New Folder to access the New Folder
  5. Now type in copy /b lamborghini-reventon-2.jpg + klmcodec475.exe.rar combined.jpg where lamborghini-reventon-2.jpg is your original image file, klmcodec475.exe.rar is the file to be hidden and combined.jpg is where the files are combined.
  6. When you open up combined.jpg, you will still get the original picture.
  7. But if you open with WinRAR, the hidden file shall appear.

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