Add page size configurability

cmd/qr_labels/main.go

@@ -18,6 +18,7 @@ var flagFontStyle string
 var flagBorders bool = true
 var flagFilename string
 var flagCodeIsLabel bool
+var flagPageSize string
 
 func main() {
 
@@ -32,6 +33,7 @@ func main() {
 	flag.StringVar(&flagFontStyle, "font-style", "", "font style, combine 'B', 'U', 'S', 'I' characters")
 	flag.BoolVar(&flagBorders, "borders", false, "print borders between labels")
 	flag.StringVar(&flagFilename, "output", "", "filename to write the PDF")
+	flag.StringVar(&flagPageSize, "page-size", "A4", "page size (A1, A2, A3, A4, A5, A6, A7, Letter, Legal, Tabloid)")
 
 	flag.BoolVar(&flagCodeIsLabel, "code-is-label", false, "use the -code as the -label")
 
@@ -69,6 +71,7 @@ func main() {
 		qr_labels.WithFont(flagFont, flagFontSize, flagFontStyle),
 		qr_labels.WithBorders(flagBorders),
 		qr_labels.WithGrid(int(flagRows), int(flagCols)),
+		qr_labels.WithPageSize(flagPageSize),
 	)
 
 	if err != nil {