To export a topic, an article or a document to pdf, you need to print it.
With the content open, select the Menu icon (ellipsis), either at the top right corner of the document or to the right of the topic or article title.
Select “Print” (for document), “Print topic” or “Print article”.
Select the topics you want to print. Then click Print.
The PDF output opens automatically. As a destination, select “Save as PDF”. Then click Save.