# pnmcrop > Crop PNM images. > More information: . - Remove white borders on a PNM image: `pnmcrop -white {{path/to/image.pnm}} > {{path/to/output.pnm}}` - Remove borders of the specified color that are on the top and left side of the image: `pnmcrop -bg-color {{color}} -top -left {{path/to/image.pnm}} > {{path/to/output.pnm}}` - Determine the color of the borders to be removed by the color of the pixel in the specified corner: `pnmcrop -bg-corner {{topleft|topright|bottomleft|bottomright}} {{path/to/image.pnm}} > {{path/to/output.pnm}}` - Leave a border with a width of `n` pixels. Additionally, specify the behaviour if the image is entirely made out of background: `pnmcrop -margins {{n}} -blank-image {{pass|minimize|maxcrop}} {{path/to/image.pnm}} > {{path/to/output.pnm}}`