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Author Topic: HackPics  (Read 43914 times)

Dakusan

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Re: HackPics
« Reply #15 on: October 11, 2018, 09:27:26 pm »

It is not possible with the program, and would not be easy if the image size was different than the original.

However, if I recall (this project is almost 15 years old, so I could be remembering wrong) they are stored in 24bit uncompressed bitmap format in the container file, so if you search with a hex editor in the original file for a byte string from the extracted picture, you can find it, and replace it with another bitmap of the same size.

If it isn't stored in 24bit uncompressed format, the extracted images will probably still be the same as the original in the container file and you can still search for them in there with a hex editor. And as long as you replace it with a bitmap of equal or less size, it should work.

When replacing, make sure to replace the entire bitmap file in the container, including the bitmap header.
« Last Edit: October 11, 2018, 09:29:35 pm by Dakusan »
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