Remove CiviCRM and Drupal links / banner on profile form
To remove the Drupal footer (This is a block called - Powered by Drupal) –

www.yoursite.com/admin/structure/block/manage/system/powered-by/configure

Under region settings, set all to - None

To remove empowered by CiviCRM – 

www.yoursite.com/civicrm/admin/setting/misc?reset=1

Set Display "empowered by CiviCRM" to No

For the header, that’s the logo, which can be changed/removed from the CiviCRM public theme –

www.yoursite.com/admin/appearance