diff --git a/_requirements_/specification.pdf b/_requirements_/specification.pdf
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diff --git a/_requirements_/specification.py b/_requirements_/specification.py
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+++ b/_requirements_/specification.py
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+def specification(req_spec):
+    req_spec.add_title("Module media")
+
+    #
+    # Section
+    #
+    sec_uuid = req_spec.add(
+        itemtype="SEC",
+        id=1,
+        heading="Metadata",
+    )
+
+    # Requirement
+    req_spec.add(
+        parent=sec_uuid,
+        itemtype="REQ",
+        id=1,
+        heading="Method to get Metadata",
+        description="A Method shall return the metadata for a given media filename.",
+    )
+    #
+    # Section
+    #
+    sec_uuid = req_spec.add(
+        itemtype="SEC",
+        id=2,
+        heading="Image",
+    )
+
+    # Requirement
+    req_spec.add(
+        parent=sec_uuid,
+        itemtype="REQ",
+        id=2,
+        heading="Load from File",
+        description="The class {\\tt image} shall have a method {\\tt load\\_from\\_file}, which creates a copy of an image to the instance. Load from file can handle a filename, but also pil images and media images.  The method returns {\\tt True} on success and {\\tt False} on failures.",
+    )
+
+    # Requirement
+    req_spec.add(
+        parent=sec_uuid,
+        itemtype="REQ",
+        id=3,
+        heading="Save",
+        description="The class {\\tt image} shall have a method {\\tt save}, which stores the modified image to a given filename.  The method returns {\\tt True} on success and {\\tt False} on failures.",
+    )
+
+    # Requirement
+    req_spec.add(
+        parent=sec_uuid,
+        itemtype="REQ",
+        id=4,
+        heading="Image data",
+        description="The class {\\tt image} shall have a method {\\tt image\\_data}, which returns the raw data of the modified image.",
+    )
+
+    # Requirement
+    req_spec.add(
+        parent=sec_uuid,
+        itemtype="REQ",
+        id=5,
+        heading="Resize",
+        description="The class {\\tt image} shall have a method {\\tt resize}, which resizes the image. The method returns {\\tt True} on success and {\\tt False} on failures.",
+    )
+
+    # Requirement
+    req_spec.add(
+        parent=sec_uuid,
+        itemtype="REQ",
+        id=6,
+        heading="Rotate",
+        description="The class {\\tt image} shall have a method {\\tt rotate\\_by\\_orientation}, which rotates the image by an exif orientation. If no parameter is given, the orientation will be taken out of the loaded image. The method returns {\\tt True} on success and {\\tt False} on failures.",
+    )
+
+    # Requirement
+    req_spec.add(
+        parent=sec_uuid,
+        itemtype="REQ",
+        id=7,
+        heading="Join",
+        description="The class {\\tt image} shall have a method {\\tt join}, which joins an image to the loaded image. The method returns {\\tt True} on success and {\\tt False} on failures.",
+    )