How to scale the cameras view bounds? The current issue is that I need more space to the right for my text, but scaling the camera to capture more of the area won't work. Why is this so?

This is what I wish to achieve: 

But I am stuck with scaling the camera:

(what is shown in red is what I wish to achieve)

How can I capture more of the area? (I prefer not to do any compositing).
You can also change the Resolution in Render Settings > Dimensions:



For this you probably want to increase the X resolution.



Notice

Note that you can't scale the camera up by adjusting these values, you will need to move the camera and/or change the Focal Length to zoom/scale the camera.


Adjust the Focal Length in Properties > Camera > Lens
The easiest way to zoom in/out with the camera is:


Enter Camera view (Numpad 0) and select the camera
Press GZZ to move the camera along the local Z axis.



By using a combination of the above techniques, you can place and scale the camera however you want.