Hidden file inside file, your own file inception

We download lots of pictures: cats, dog and weird things from image boards and other sites from web.

Most of us don’t know it but common practice on some image board is embedding files into picture files.

 

How to add file to image so the image wont get corrupted but will be readable like normal pictures?

We will need:

  1. Compressing software like 7-zip
  2. Picture we will use as our hide base
  3. File which we want to embed

Embedding file:

To extract embedded file from image use:

Bonus:

How to scan your image collection to extract hidden content from them?

We can use command below for that:

 

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