A message to the translation group (I ultimately refuse to call it anything other than translation): I suggest you not to upscale the image, edit it in source quality. If you are running anisotropic or any other way to "increase" it's resolution, you can do it on an upscaled version for a maybe better result, but downscale it to original size after. When viewing on a big screen, there is no propper setting for it no to be pixelated: if I say vertical constraint, it's too small to be comfortable; if I say horizontal, the image doesn't actually have 1960px width (it's been upscaled to this size), so it appears pixelated; and if I set original size, it's the same as going horizontal. In general, the less scaling you do the better looking the result will be.