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Info
titleCanvas Dimensions

As of 7.2, the canvas dimension options (iiif.canvas.default-width and iiif.canvas.default-height) are updated with additional behaviors.

  • If you do not provide your own default dimensions in iiif.cfg, DSpace will attempt to optimize canvas dimensions when dimension metadata is missing from the first bitstream in the item. This will often produce more accurate viewer layouts, but note that it is not sufficient to assure accurate layouts in all cases. 
  • If you decide to add your own default dimensions in iiif.cfg file your dimensions are used for every bitstream that lacks dimension metadata.
  • You may also set both default dimensions in iiif.cfg to the value -1. In this case, DSpace creates accurate default dimensions for every bitstream that lacks dimension metadata. Note that this impacts performance.

It is recommended that iiif.image.width and iiif.image.height metadata be added to Item, Bundle, or Bitstream metadata to assure accurate layout and top performance. Default dimension configurations are intended to improve the user experience when dimension metadata has not yet been added.

CORS Configuration

By default, the DSpace IIIF backend is configured to accept requests only from the Angular client origin. To facilitate the repository interoperability that IIIF promises, you can configure additional The wildcard "*" configuration is the default CORS setting for IIIF. With this setting, all remote viewers and applications can retrieve manifests, assuring maximum interoperability. You can restrict CORS origins using the iiif.cors.allowed-origins property defined in iiif.cfg. Currently, DSpace does not support the "*" wildcard but you are free to add multiple, Remove the wildcard and add a comma-separated list of origins to the listinstead.

IIIF Search API

DSpace includes a plugin to support the IIIF Search API. This plugin is designed to work specifically with the Solr OCR Highlighting Plugin and METS/ALTO data. You are welcome to experiment with the plugin. To do so,uncomment the following settings in config/modules/iiif.cfg:

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