# pnmtops > Convert a PNM image to a PostScript file. > More information: . - Convert a PNM image to a PS file: `pnmtops {{path/to/file.pnm}} > {{path/to/file.ps}}` - Specify the dimensions of the output image in inches: `pnmtops {{[-imagew|-imagewidth]}} {{imagewidth}} {{[-imageh|-imageheight]}} {{imageheight}} {{path/to/file.pnm}} > {{path/to/file.ps}}` - Specify the dimensions of the page the output image resides on in inches: `pnmtops {{[-w|-width]}} {{width}} {{[-h|-height]}} {{height}} {{path/to/file.pnm}} > {{path/to/file.ps}}`