diff --git a/Resources/config/services.yml b/Resources/config/services.yml
index 84c2ed0..86100b5 100644
--- a/Resources/config/services.yml
+++ b/Resources/config/services.yml
@@ -18,6 +18,8 @@ services:
           - '%gregwar_image.throw_exception%'
           - '%gregwar_image.fallback_image%'
 
+    Gregwar\ImageBundle\Services\ImageHandlingInterface: '@image.handling'
+
     # Helper Twig
     twig.extension.image:
         class: Gregwar\ImageBundle\Extensions\ImageTwig
diff --git a/Services/ImageHandling.php b/Services/ImageHandling.php
index f56a1fd..fe8acb1 100644
--- a/Services/ImageHandling.php
+++ b/Services/ImageHandling.php
@@ -14,7 +14,7 @@
  * @author Gregwar <g.passault@gmail.com>
  * @author Sullivan Senechal <soullivaneuh@gmail.com>
  */
-class ImageHandling
+class ImageHandling implements ImageHandlingInterface
 {
     /**
      * @var string
diff --git a/Services/ImageHandlingInterface.php b/Services/ImageHandlingInterface.php
new file mode 100644
index 0000000..4b90bfa
--- /dev/null
+++ b/Services/ImageHandlingInterface.php
@@ -0,0 +1,29 @@
+<?php
+
+
+namespace Gregwar\ImageBundle\Services;
+
+
+use Gregwar\ImageBundle\ImageHandler;
+
+interface ImageHandlingInterface
+{
+    /**
+     * Get a manipulable image instance.
+     *
+     * @param string $file the image path
+     *
+     * @return ImageHandler a manipulable image instance
+     */
+    public function open($file);
+
+    /**
+     * Get a new image.
+     *
+     * @param string $w the width
+     * @param string $h the height
+     *
+     * @return ImageHandler a manipulable image instance
+     */
+    public function create($w, $h);
+}
\ No newline at end of file