# pnmmargin

> Add a border to a PNM image.
> More information: <https://netpbm.sourceforge.net/doc/pnmmargin.html>.

- Add a border of the specified size to a PNM image:

`pnmmargin {{size}} {{path/to/image.pnm}} > {{path/to/output.pnm}}`

- Specify the color of the border:

`pnmmargin -color {{color}} {{size}} {{path/to/image.pnm}} > {{path/to/output.pnm}}`