Illustrating with an overview

To help the user identify a metadata record of interest, you can create a graphic overview (or thumbnail) in the form of an image and attach it to the metadata record. For example, if your metadata record describes some geographic dataset then the graphic overview could be an image of the map with legend produced by an OGC Web Map Service.

You can associate one or more thumbnails with a record.

Thumbnails are displayed in search results and metadata view:


From the Associated resources panel, click on the Add a thumbnail button to open the Add an overview to the current metadata wizard. Thumbnails can be added using 3 approaches:

Linking a thumbnail with a URL

When the thumbnail is available as an image on the web, it could be directly linked to the metadata record. Add an optional description to describe the image:


You can link as many images as you want. Images associated in this mode, should be publicly accessible on the web if you want the thumbnails to be displayed properly even if that metadata record get harvested by other catalogs.

Uploading a thumbnail

Only 2 thumbnails can be attached to a record and uploaded to the catalog. Optionnaly a small thumbnail can be created automatically when uploading a large image.

The following image formats are supported:

  • GIF,
  • PNG
  • JPEG

Choose a file on your computer or drag&drop a file on the popup. Click Add a thumbnail to trigger the upload.

Generating a thumbnail using WMS layers

If you have registered a WMS layer in the current metadata record (see Linking a WMS layer), a thumbnail can be generated using it on top of the base layer map. Choose the Create thumbnail tab and choose the area to be print on the thumbnail.