I use Image::Magick for most of my image processing and manipulation routines. 
# Resize image
my $image = new Image::Magick;
$image->Read($file);
$image->Scale(geometry => '300x300');
$image->Set(density=>'200');
$image->Write($file);

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In reply to Re: Graphics file size information by wind
in thread Graphics file size information by John M. Dlugosz

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