Yes, after finding the header and footer, you can directly enter the content of the header and footer by double clicking the header or footer, and then select the content you entered and modify the font
Printing does not affect the effect!!!!If you don't want to print, don't put it in the header, directly put it in the body, float it above the text, and then drag it to the header~!
The first question is for sure. I usually write the document first and then add the header and footer. I'm not clear about the following, or you can send a picture or description more specifically