Index: library/Zend/Pdf/Resource/Image/Jpeg.php
===================================================================
--- library/Zend/Pdf/Resource/Image/Jpeg.php	(revision 18072)
+++ library/Zend/Pdf/Resource/Image/Jpeg.php	(working copy)
@@ -52,13 +52,13 @@
      */
     public function __construct($imageFileName)
     {
-        if (!function_exists('gd_info')) {
+        if (!function_exists('gd_info') || !function_exists('imagetypes')) {
             require_once 'Zend/Pdf/Exception.php';
             throw new Zend_Pdf_Exception('Image extension is not installed.');
         }
 
         $gd_options = gd_info();
-        if (!$gd_options['JPG Support'] ) {
+        if ((imagetypes() & IMG_JPG) == 0) {
             require_once 'Zend/Pdf/Exception.php';
             throw new Zend_Pdf_Exception('JPG support is not configured properly.');
         }
Index: tests/Zend/Pdf/DrawingTest.php
===================================================================
--- tests/Zend/Pdf/DrawingTest.php	(revision 18072)
+++ tests/Zend/Pdf/DrawingTest.php	(working copy)
@@ -205,14 +205,10 @@
              ->restoreGS();
 
         $jpegSupported = false;
-        if (function_exists('gd_info')) {
-            $info = gd_info();
-            if (isset($info['JPG Support'])) {
-                $jpegSupported = $info['JPG Support'];
-            } elseif (isset($info['JPEG Support'])) {
-                $jpegSupported = $info['JPEG Support'];
-            }
+        if (function_exists('imagetypes')) {
+            $jpegSupported = (imagetypes() & IMG_JPG) != 0;
         }
+
         if ($jpegSupported) {
             $stampImageJPG = Zend_Pdf_Image::imageWithPath(dirname(__FILE__) . '/_files/stamp.jpg');