pdfseparate possible or write specific pages? about go-poppler HOT 1 OPEN

func Convert2Pdf(pgs []*Page, dest string) string {
	width, height := pgs[0].Size()
	surface := cairo.NewPDFSurface(dest, width, height, cairo.PDF_VERSION_1_5)
	defer surface.Finish()
	for _, pge := range pgs {
		_, ctx := surface.Native()
		//goland:noinspection GoVetUnsafePointer
		C.poppler_page_render_for_printing(pge.p, (*C.cairo_t)(unsafe.Pointer(ctx)))
		surface.ShowPage()
	}
	return dest
}