<?# preparing PNG fonts to use with KCAPTCHA.# reads files from folder "../fonts0", scans for symbols ans spaces and writes new font file with cached symbols positions to filder "../fonts"# comment or remove next line for using (commented for security reason):exit();if ($handle = opendir('../fonts0')) {    while (false !== ($file = readdir($handle))) {        if ($file == "." || $file == "..") {        	continue;        }        $img=imagecreatefrompng('../fonts0/'.$file);        imageAlphaBlending($img, false);		imageSaveAlpha($img, true);        $transparent=imagecolorallocatealpha($img,255,255,255,127);        $white=imagecolorallocate($img,255,255,255);        $black=imagecolorallocate($img,0,0,0);        $gray=imagecolorallocate($img,100,100,100);        for($x=0;$x<imagesx($img);$x++){        	$space=true;        	$column_opacity=0;        	for($y=1;$y<imagesy($img);$y++){        		$rgb = ImageColorAt($img, $x, $y);        		$opacity=$rgb>>24;        		if($opacity!=127){        			$space=false;        		}        		$column_opacity+=127-$opacity;        	}        	if(!$space){        		imageline($img,$x,0,$x,0,$column_opacity<200?$gray:$black);        	}        }        imagepng($img,'../fonts/'.$file);    }    closedir($handle);}?>