How do I add a page to a pre-existing Adobe Reader document?
Combine Two PDFsOpen the pre-existing Adobe Reader document that you want to either add a new page to or join with another pre-existing PDF. On the menu toolbar, select the menu titled “Document.” Scroll over the sub-menu titled “Insert pages” to display the following menus: “From file” and “From clipboard.” Select “From file” to combine two or more pre-existing PDFs. It will allow you to add one or more pre-existing PDF pages before or after specific pages of another pre-existing PDF.Add New PageIf you want to add a new page to the document, choose “From clipboard” from the “Insert pages” sub-menu.