First off, could you somehow only show the PDF you want to and then your layout would load so much faster.
What if you have a calculated field showing the name of each PDF and then a Popover that you can click on to actually see the PDF
Then your layout would load much faster.
The reason I have the containers tiled is so the user can preview the contents and also drag and drop files into open container fields. Is there a way to do this?
User can still drag and drop files to your containers even if they are inside a Popover
You use GetContainerAttribute( Field Name ; "filename" ) to for the new calculated fields to show the name of the PDF.
The PDF icon you can use a Hide object when on if there is no information in that container field, then do not show the PDF icon.