LegendBorderSpace

As of Version 9, all the functionality of the PlotLegends package is built into the Wolfram System. »

LegendBorderSpace

is an option for Legend that sets the space around the entire set of key boxes and text in the legend.

Details and Options

To use LegendBorderSpace, you first need to load the Plot Legends Package using Needs["PlotLegends`"].
The following settings can be given:
n a number

Automatic determine border spacing automatically

Wolfram Language code: Needs["PlotLegends`"]

Normal placement of the keys in the legend:

Wolfram Language code: Plot[{Sin[x], Cos[x]}, {x, 0, 2Pi}, PlotLegend -> {"sine", "cosine"}, LegendBorderSpace -> Automatic]

Increase the space between the keys and the edges of the legend:

Wolfram Language code: Plot[{Sin[x], Cos[x]}, {x, 0, 2Pi}, PlotLegend -> {"sine", "cosine"}, LegendBorderSpace -> 1]

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	n	a number
	Automatic	determine border spacing automatically