Is it possible to display a pdf file using this plugin?
Most if all current browsers can display PDF files natively.
Are you trying to get a PDF to open within a wiki page?
You would have to allow HTML in settings then use <iframe></iframe>
Unlogy (not really a wizard but I play one on the internet)
A pdf file can easily be opened with the pdfjs plugin inside a wiki page. My intention is to open the pdf in a popup window with a click on an image.