How to add page number while merging the pdf using power automate flow

Hi ;

i am using adobe service in power automate flow. what i am doing is that i am getting different files like(word, excel etc.) converting them into pdfs and then merging all the pdf files into one pdf through Merge process in adobe service, but i want to know that how can i have header and footer into the merge file so that i can add page number on footer and logo on header .