How to disable right-click pop-up menu in Pages Dock? How do I disable the app Pages from showing my most recent documents? In fact, I'd like to disable this little menu popup every time I right click on ALL of my apps. 

Edit: I apologize for not clarifying. You see those documents (e.g. Purg2, Purgh), they are no longer on my desktop, I upload them into my computer with a scan disk and edit them using Pages. The problem here is that I don't want them visible every time I right click with my mouse or use two fingers on my trackpad when the Pages document isn't even on my computer.
In order for recent items not to show on an application's dock tile, you'll need to do at least two things, as also shown in the images below.


First in System Preferences > General, set e.g.: Recent items: 10 Documents, Apps, and Servers to : Recent items: None Documents, Apps, and Servers
Next, In Pages, as well as other apps that have an Open Recent menu item on the app's File menu, click Clear Menu in order for them not to show after taking the first step.