Thank you for pointing me in the right direction. I'm still a bit confused about which setting would remove the text on the screenshot I posted. Any suggestions? This was a Word File I saved as a filtered webpage then coverted to PDF. It's a 100+ page document so being able to just adjust the settings would be so wonderful. Thanks so much for your help!
Cropping to remove a page object is always a bad idea, as most of the time it's not actually removed.
The header/footer lines created by PDFMaker are tagged - so to remove them after the fact, just use the Pages > Header/Footer > Remove button in Acrobat.