Print pdf from website with Golang

main.go

func ExamplePrintToPDF() {
	ctx, cancel := chromedp.NewContext(context.Background())
	defer cancel()

	var buf []byte
	if err := chromedp.Run(ctx,
		chromedp.Navigate(`https://godoc.org/github.com/chromedp/chromedp`),
		chromedp.ActionFunc(func(ctx context.Context) error {
			var err error
			buf, _, err = page.PrintToPDF().
				WithDisplayHeaderFooter(false).
				WithLandscape(true).
				Do(ctx)
			return err
		}),
	); err != nil {
		panic(err)
	}

	if err := ioutil.WriteFile("page.pdf", buf, 0644); err != nil {
		panic(err)
	}
}