image - PNG custom shape with PHP imagemagik or GD2 -

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is possible make transparent png image php has custom shape? example, i've got jpg image @ server. using php imagemagik or gd2 save transparent png , transparency custom shape. hope it's clear. if it's not send example.

regards, dave

umm possible make transparent, can set color transparent, , library make each matching pixel transparent. i'm not sure mean shape though.

http://php.net/manual/en/function.imagecolortransparent.php


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