Just for fun I asked ChatGPT how do do this using the prompt: "What is the best way to create a 1x1 transparent image in Perl for use in email tracking?"

It came up with this solution: 

use GD;

# Create a new transparent image
my $image = GD::Image->newTrueColor(1, 1);
$image->alphaBlending(0);
$image->saveAlpha(1);
my $transparent = $image->colorAllocateAlpha(0, 0, 0, 127);
$image->transparent($transparent);

# Output the image
print "Content-Type: image/png\n\n";
print $image->png;

[download]
And then went on to explain how it worked...

I prefer the solution put forward by afoken in Re: Create email tracking image

In reply to ChatGPT's solution (was: Re: Create email tracking image) by Bod
in thread Create email tracking image by Bod

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