diff --git a/part_picture.php b/part_picture.php
index 6e8aeb7..c228072 100644
--- a/part_picture.php
+++ b/part_picture.php
@@ -66,9 +66,11 @@ if ($mime_type == 'image/jpeg') {
     $output_image = imagecreatetruecolor($output_width, $output_height);
 } else if ($mime_type == 'image/png') {
     $source_image = imagecreatefrompng($source_path);
-    imagealphablending($source_image, true);
+    imagealphablending($source_image, false);
     imagesavealpha($source_image, true);
-    $output_image = imagecreate($output_width, $output_height);
+    $output_image = imagecreatetruecolor($output_width, $output_height);
+    imagealphablending($output_image, false);
+    imagesavealpha($output_image, true);
 } else {
     ErrorLog("Unkown mime type: " . $mime_type . "!");
     exit("Can't handle requested mime-type.");