Recently, when I bring up a PDF document, there is a promotion for a signature that appears on the right side of the document. When scrolling, that side of the document can't be read, if you want to print, it obscures the printer properties. I have no need of a signature for anything I do with PDF documents, so how do I get rid of the promotion? The promotion reads: "Sign on the dotted line---or anywhere! "Draw, type, or upload your signature, then place it exactly where you want. Save your go-to signature for next time."