Working with component files in a PDF Portfolio
Right PDF Reader provides portfolio viewing options that enable users to present content in an optimal layout. There are two ways to navigate through files/folders: View files in a grid and View files in a list.
You can choose to view component files in a list or a grid view. By default, files are placed in grid but you can switch to a list view by clicking the Go to list view to navigate through files using file details button on the PDF Portfolio toolbar.
View files in a grid
All component files/folders are presented in Grid view by default, which are used mainly for presentations or brochures. In a Grid view, each card represents a file or a folder and also shows thumbnail and information about the document, including file name and description.
To switch from list view to a grid view, on the PDF Portfolio toolbar, click Go home to navigate through files visually to restore grid viewing.

Navigate through files in a gird view that lists all files/folders on the left side of the Portfolio workspace.
View files in a list
You can choose to view files/folders in a list that shows the details of component files. By default, the columns contain properties including name, description, size, date created and modified, and compressed size.

In list view, the file list is in the upper part of the document pane.