tldr/pages/common/pnmmercator.md

pnmmercator

Perform Mercator transformations on Netpbm images. More information: https://netpbm.sourceforge.net/doc/pnmmercator.html.

• Convert a rectangular projection worldmap to Mercator projection:

pnmmercator {{path/to/image.pnm}} > {{path/to/output.pnm}}

• Convert a Mercator projection worldmap to rectangular projection:

pnmmercator {{[-i|-inverse]}} {{path/to/image.pnm}} > {{path/to/output.pnm}}