User type: anyone, as long as they have permissions
On the PIA detail screen to consult the metadata of the file and/or documents, simply click on the “View Metadata” link.
It should be noted that when a file or document has more than one metadata vocabulary, when consulting this metadata the different vocabularies appear grouped in a way that they can be expanded or grouped.
Below is the page for querying grouped metadata for a document, which also includes metadata for the signatures associated with the document: