pnmtops
Convert a PNM image to a PostScript file. tldr-pages
On several platforms
Several platforms
Convert a PNM image to a PS file
pnmtops path/to/file.pnm >path/to/file.psIdentifySpecify the dimensions of the output image in inches
pnmtops -imagewidth imagewidth -imageheight imageheight path/to/file.pnm >path/to/file.psIdentifySpecify the dimensions of the page the output image resides on in inches
pnmtops -width width -height height path/to/file.pnm >path/to/file.psIdentify