Click Pdf button
Select wordpress (If using wordpress if not select blog you are using)
Blog url-full web address with http
To get xml code, log into dashboard on blog, go to tools, export then select category you want archiving. Download the file, put it somewhere you can find it, open containing folder.
On blogbooker, browse to find you xml file, leave any choices the same on the website.
Done, save the pdf in a folder you can find.