After you edited some PDF's informations from the settings, you have to regenerate your PDFs to be upddated to the new settings. This is how you can do it:
Click on Quotes submenu from CRM module.
Click on a quote.
Click on Actions then select Regenerate PDF.
Select Business Unit then click on Create PDF again.
Regenerating will update your PDf to the current form, for example when you change PDF layout.