Print a still from a .app

Hello,

Is it possible to print a "still" from a shiny app in pdf form?
I've opened it in my browser and it has some text, Latex, pictures and graphs but when I want to save it to a pdf using ctrl + S, I lose (some) of the colours and it also prints the ip adress as a header

Take a look at this package

Thank you it works well.

Only problem is that it works well with graphics obtained with plotOutput but not plotlyOutput (they are simply blank). Any workaround?