php gd image quality

I 'm trying to add text on a specific image. Its working perfectly but the quality of image is low especially for papyrus.ttf font. How can i improve the quality of text in the image. But i need high quality to print the output. Here is my code.. its very simple.

header("Content-Type: image/jpeg");
$im = imagecreatefromjpeg("cosmos.jpg")开发者_运维问答;  
$black = ImageColorAllocate($im, 0, 0, 0);
Imagettftext($im, 14, 0, 10, 15, $black, 'papyrus.ttf', "Corey and Lisa ");
Imagettftext($im, 14, 0, 10, 35, $black, 'papyrus.ttf', " 1994, june");
Imagejpeg($im, '', 100);
ImageDestroy($im);

Download: http://wneeds.com/gdtest.zip

If imageTTFText fails in Quality, the next step to try is ImageFTText(). It uses the FreeType library to render fonts, which usually means significantly better quality. It needs to be installed and compiled into PHP to work, which it most often is. Try calling the function and you'll see whether that is the case.

If that doesn't do, the next step is using ImageMagick either through the command line, or through the appropriate PHP extension. But try Freetype first, it could already be enough.