Function mupdf_sys::fz_save_pixmap_as_pam

pub unsafe extern "C" fn fz_save_pixmap_as_pam(
    ctx: *mut fz_context, 
    pixmap: *mut fz_pixmap, 
    filename: *const c_char
)

Save a pixmap as a pnm (greyscale, rgb or cmyk, with or without alpha).