Scenario: The school lunch lady creates the monthly lunch menu in a PDF file (this is a given). She uploads this PDF to the SP2013 library called LunchMenus (file name could be 'Lunch Menu July 2015.pdf'. From the intranet home page a link to a 'site page' called 'Monthly Menu' contains a webpart (with an embed object) that displays a PDF from the library.
Currently, it's 'fixed' at displaying a file called 'Current Menu.pdf' and the lunch lady has to rename the monthly menu to 'Current Menu' in order for it to display. Ideally the embed object webpart could simply access the most recent menu and display the PDF despite what it's name is.
Is there a method for displaying the most recent PDF from a library in a webpart?