[DFW.pm] Changing colors in a gif using cgi

[Jerry Kassebaum]

How can I use Perl to read a non-text file in hex, change a few individual bytes, and write it back? Would this work to change a gif or png, or would I have to go down to binary?

I appreciate the ImageMagic answer I received before, and may have to resort to that, but I would prefer to work with pure Perl without loading a module. Surely there is a simple way to read/write a file byte by byte?



Jerry Kassebaum





 		 	   		  
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