===== favorite configuration =====
==== always show the ribbon ====
Ctrl+F1 or press the down arrow button (left to the question mark) in the top right)

{{::ms_paint_ribbon_expander.png|}}

===== dummy =====
==== paste image without extra space ====
  * Click on the rectangular Select icon
  * Click & drag your cursor around the area you want to keep
  * Click on Crop [just next to the Select icon].

Ref:- https://www.tenforums.com/software-apps/198621-how-get-rid-white-space-paint.html