By default Imager->new creates a 3 channel image, which has no alpha channel.

To create a transparent image, create a 4 channel image:

my $im = Imager->new(xsize => $width, ysize => $height, channels => 4);

In reply to Re: Imager transparent background instead of black by tonyc
in thread Imager transparent background instead of black by Anonymous Monk

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