tldr/pages/common/pnmmargin.md

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# 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}}`