A bit more on the last post
You can use the align tool. see: https://docs.gimp.org/en/gimp-tool-align.html
Works something like this:
make the selection
Select the align tool (1) use Relative to Selection (2) Click in the canvas to make the layer 'active' you get little squares in the corners (3) Click on both horizontal and vertical align icons (4)
example
You can use the align tool. see: https://docs.gimp.org/en/gimp-tool-align.html
Works something like this:
make the selection
Select the align tool (1) use Relative to Selection (2) Click in the canvas to make the layer 'active' you get little squares in the corners (3) Click on both horizontal and vertical align icons (4)
example