OK let me ask if this is the correct process...
I have a PDF book. . . I add it to my Calibre library... I go to convert ebook and update all metadata and the go to Page set up... make sure input and output are correct.. go to structure detection.. click on "Remove Footer" and click on the wizard tool... type in (\d+\s*</p><p>) and see the highlighted page numbers and codes... push ok and then click ok to start the conversion.. what am I missing?