Ok, I'm stumped. I can't get php to handle the following skin:
http://www.planetminecraft.com/images/rendant-ficious-king.png


Before I can do anything with it, the following simple built in php function needs to work:

$file = '/path/to/rendant-ficious-king.png';
$image = imagecreatefrompng($file);


Following warnings are generated:
gd-png: fatal libpng error: Read Error: truncated data
gd-png error: setjmp returns error condition
rendant-ficious-king.png is not a valid PNG file

What I know:
* Source image loads fine in image viewers, browser & photoshop
* Source image is 32bit. (Only difference I see when comparing to skin files that work.)

My google-fu is failing me. Is it just a corrupt png that somehow still works?