Documentation: metadata download Tier-1 Data

source/data/tier1data/clients/mango_portal.rst

@@ -198,6 +198,23 @@ Note that you cannot edit metadata added via metadata extraction: you can only d
 Analysis by Apache Tika may also give an OCR (Optical Character Recognition) reading, which is an overview of all text recognized in e.g. an image.
 This feature is a proof of concept, and this information can currently not be added as metadata. 
 
+Downloading metadata
+===================
+
+It is possible to download metadata attached to a collection or data object as an interoperable JSON file and use outside of Tier-1 Data. 
+To download metadata go to the tab 'Metadata' and click on the 'Download metadata' button on the right. 
+This will prompt a pop-up box showing the contents of the JSON file to download.
+You can adjust the document by filtering based on schema metadata (Schemas), manual metadata (Other metadata) or automatically extracted metadata (Automatic extraction). 
+Once you are satisfied with your selection you can click 'Download' to download the metadata as a JSON document. 
+To learn more about how the JSON is created you can have a look at the `documentation of our Python module <https://github.com/kuleuven/mango-mdconverter#mango-specific-conversion>`_. 
+
+.. figure:: ../images/mango_portal/metadata_download.png
+  :alt: downloading metadata
+  :width: 500
+
+
+
+
 
 Searching
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