Wallpaper without zooming or cropping

How can I set a WHOLE image as my wallpaper?
I have tried using wallpaper wizardii and image 2 wallpaper apps but neither seems to let me set an entire image without zooming..

I have nexus 6p I have tried to find the resolution and set wallpapers but haven't found what I'm looking for

Let's block ads! (Why?)

Wallpaper without zooming or cropping