The « Paste » command, which simply centers the pasted image data over the selection and replaces the selection with its own, « Paste Into Selection » clips the pasted image data by the existing selection. The new selection can be moved as usual, but it is always clipped by the original selection area.
command acts in a similar way to the command. The primary difference becomes apparent if there is a selection within the canvas. Unlike theIf no selection exists, the « Paste Into Selection » command places the data from the Clipboard into the center of the canvas, as the « Paste » command does.