How can I save a hit in PDF-format?

One way you can save a hit is by clicking on the title and click on save. Another way is by creating a report. Here, you tick the box of the hits you want to include in yout report and press save in the menu bar. Then you can choose to save it as a PDF, and click on create a report. Now you can either save the report or share it with others who have access to the portal by using Generate link for sharing (requires login). The link works for thirty days.

You can learn more about reports here.