Impossibile to load pdf and img file within the html

[Kamyus88]

I have some difficulty uploading pdf files and images within the html. If I normally create an html everything works, while in Media Box nothing appears. (Qlick Sense Desktop)

this is what I'm trying to do

in data loader I have
Html:
LOAD * INLINE [
HTML, HtmlAsset
'<title style="color:green;">pdf file</title>','pdf'
'

','load PDF'
];

First line works perfectly, I can see the green text "pdf file". Second line doesn't work