To add the additional style to the header and footer, use the "Text Tab" on the page with the setting of Header & Footer Template.
To add some style to the plugin shortcodes available in the plugin settings such as:
{PAGENO},{TITLE}, {PAGETOTAL},{PAGEURL} etc., you need to set styles inside the first tag.
For example:
<strong style="color: (past your colour); font-size: (past your size)px; background: (past your colour) ;">{TITLE}</strong>
This article related to PDF & Print by BestWebSoft plugin
Additional resources: PDF & Print - User Guide
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