grap — A charting preprocessor for the groff (GNU Troff) document formatting system. See also: `pic`, `grof

Process a `grap` file and save the output file for future processing with `pic` and `groff`

grap {{path/to/input.grap}} > {{path/to/output.pic}}

Typeset a `grap` file to PDF using the [me] macro package, saving the output to a file

grap {{path/to/input.grap}} | pic -T {{pdf}} | groff -{{me}} -T {{pdf}} > {{path/to/output.pdf}}