I'm trying to have a background image taking full height and full width of my document (which is set with all four margins equal to zero).
Annoyingly though, Google docs adds very small left and top margins to inserted images, with apparently no way to remove these (how disappointing of Google if there's no work around, you would expect such arbitrary limitation from Microsoft but not from them).
I cannot find a way to remove these blank spaces, so I can't have my image reach all edges of my page. Any suggestion?