As you can see, if I try to translate an image in the compositor, it does not affect the actual bounds of the image, only the pixels themselves.
The same thing happens when trying to scale an image:
So the image cannot be moved or scaled further than the actual dimensions of the image without clipping it.
The render border size does not seem to affect it: (Seen here with a gradient texture to define where the render dimensions are.)
For some reason skipping the blur node makes it work, but with it it gets cropped.
Aside from creating a lot of transparent space around the image in an external image editor or scaling the Pixels down with a Scale node,
How can I accomplish this?