Using this can help leechers from getting info off your site.
emails, links, idk?

<?php

header("Content-type: image/png"); 

// image size
$picture = imagecreate(500,200); 

// background color

$gray = ImageColorAllocate ($picture, 51, 51, 51);

// white text color

$white = ImageColorAllocate($picture, 255, 255, 255); 

//red text color

$red= ImageColorAllocate($picture, 255, 0, 0); 

// green text color

$green = ImageColorAllocate($picture, 0, 255, 0);

// messages

$messages = array("this color will be red" => $red, "this will be green" => $green, "this will be white." => $white, "red." => $red, "red." => $red, "green" => $green, "white" => $white);

multilineTextToImage($picture, $messages, 2, 45, 30, 20); 
ImagePng ($picture);

function multilineTextToImage($image, $string, $font_size, $x, $y, $yDis)  { 
    $i = 0;
    foreach($string as $k=>$v)
     ImageString($image, $font_size, $x, $y + $yDis * $i++, $k, $v); 
 } 
?>