eXo Platform supports you to view all information of a document, such as name, title, type, owner, created and modified dates.
To view information, simply select 
 from the Right-click menu or on the Action bar.
        
The View Information form appears as below.

This function allows you to view metadata attached to the uploaded file (nt:file).
Open the document (nt:file).
          Click 
 on the Action bar to open the View Metadata form.
        

Click at the bottom of the View Metadata form to add or edit metadata to open the Add/Edit Properties form.

Complete the desired fields in the Add/Edit Properties form.
Click 
 to add further metadata for each field.
Click 
 to remove corresponding values.
Click to accept your changes.