links for 2009-09-23

  • I don’t know how many of you know this trick. Did you know that you can hide a ZIP file inside a JPG image? It has been 10 or more years that i know this trick but never (hmm maybe not) have shared this with others.

    Actually it is not a trick. It is a logical “file format” hack that allows you to add a zip file inside a JPEG image and use both of the formats by just renaming the file. It works 100% on Windows systems, hence these systems tend to identify the file format from the extension.

    What we will create is a big image with 4 thumbnailed images that when renamed to main.zip it will iclude the thumbnail’s original images. For those that just want to see the final file, here it is:

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