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It's relatively easy, the JPG format specifies the length of the file, so you can append anything at the end of the file and it will get ignored. I appended an
by shaky-carrousel 4y ago
It's relatively easy, the JPG format specifies the length of the file, so you can append anything at the end of the file and it will get ignored. I appended an erotica JPG at the end of an innocent looking one. They probably appended a RAR.