Inserting PDF

How can I decently insert a PDF into a document? I push the green button for add new page, then I pull the PDF over and it is viewed. However, on the page is now a double scrollbar. Once for scrolling the PDF file, one for scrolling the page (or so it seems). In the tutorial there is only one scrollbar.

You don’t have to add a document and insert the .pdf after.
All you have to do is importing the .pdf into the research section. You can do this by drag and drop.

thanks & solved

silly me