Now mark the entire content of the third page and cut it with the right mouse button “cut” or shortcut “CTRL + X”.
The text on page 3 disappears and is in the clipboard.
Then go to the beginning of the new blank page before the page break, and paste the text with the right mouse button with “Paste” or via keyboard shortcut: “CTRL + V”.
If previously manually set page breaks have become superfluous, and you may now always get a blank page at the end of your document, simply remove them by highlighting the page break and then using the “DELETE” key on your keyboard.
See picture: (click to enlarge)