diff --git a/foo2ddst.c b/foo2ddst.c
index c8bfd07..5501796 100644
--- a/foo2ddst.c
+++ b/foo2ddst.c
@@ -1439,7 +1439,10 @@ main(int argc, char *argv[])
 			    error(1, "Illegal Y value '%s' for -g\n", optarg);
 			break;
 	case 'm':	MediaCode = atoi(optarg); break;
-	case 'n':	Copies = atoi(optarg); break;
+	case 'n':	Copies = atoi(optarg);
+			if (Copies < 1 || Copies > 999)
+			    error(1, "Illegal value '%s' for Copies -n\n", optarg);
+			break;
 	case 'p':	PaperCode = atoi(optarg); break;
 	case 'r':	if (parse_xy(optarg, &ResX, &ResY))
 			    error(1, "Illegal format '%s' for -r\n", optarg);
diff --git a/foo2hbpl2.c b/foo2hbpl2.c
index 4da685b..65d8802 100644
--- a/foo2hbpl2.c
+++ b/foo2hbpl2.c
@@ -1521,7 +1521,10 @@ main(int argc, char *argv[])
 			    error(1, "Illegal Y value '%s' for -g\n", optarg);
 			break;
 	case 'm':	MediaCode = atoi(optarg); break;
-	case 'n':	Copies = atoi(optarg); break;
+	case 'n':	Copies = atoi(optarg);
+			if (Copies < 1 || Copies > 999)
+			    error(1, "Illegal value '%s' for Copies -n\n", optarg);
+			break;
 	case 'p':	PaperCode = atoi(optarg); break;
 	case 'r':	if (parse_xy(optarg, &ResX, &ResY))
 			    error(1, "Illegal format '%s' for -r\n", optarg);
diff --git a/foo2hiperc.c b/foo2hiperc.c
index bb220ea..f1fdee5 100644
--- a/foo2hiperc.c
+++ b/foo2hiperc.c
@@ -1595,7 +1595,10 @@ main(int argc, char *argv[])
 			    error(1, "Illegal Y value '%s' for -g\n", optarg);
 			break;
 	case 'm':	MediaCode = atoi(optarg); break;
-	case 'n':	Copies = atoi(optarg); break;
+	case 'n':	Copies = atoi(optarg);
+			if (Copies < 1 || Copies > 999)
+			    error(1, "Illegal value '%s' for Copies -n\n", optarg);
+			break;
 	case 'p':	PaperCode = atoi(optarg); break;
 	case 'r':	if (parse_xy(optarg, &ResX, &ResY))
 			    error(1, "Illegal format '%s' for -r\n", optarg);
diff --git a/foo2hp.c b/foo2hp.c
index 0f73451..d17c8c5 100644
--- a/foo2hp.c
+++ b/foo2hp.c
@@ -1708,7 +1708,10 @@ main(int argc, char *argv[])
 			    error(1, "Illegal Y value '%s' for -g\n", optarg);
 			break;
 	case 'm':	MediaCode = atoi(optarg); break;
-	case 'n':	Copies = atoi(optarg); break;
+	case 'n':	Copies = atoi(optarg);
+			if (Copies < 1 || Copies > 999)
+			    error(1, "Illegal value '%s' for Copies -n\n", optarg);
+			break;
 	case 'p':	PaperCode = atoi(optarg); break;
 	case 'r':	if (parse_xy(optarg, &ResX, &ResY))
 			    error(1, "Illegal format '%s' for -r\n", optarg);
diff --git a/foo2lava.c b/foo2lava.c
index 7caa7ad..8115203 100644
--- a/foo2lava.c
+++ b/foo2lava.c
@@ -1559,7 +1559,10 @@ main(int argc, char *argv[])
 			else
 			    MediaCode = atoi(optarg);
 			break;
-	case 'n':	Copies = atoi(optarg); break;
+	case 'n':	Copies = atoi(optarg);
+			if (Copies < 1 || Copies > 999)
+			    error(1, "Illegal value '%s' for Copies -n\n", optarg);
+			break;
 	case 'p':	if (strstr(optarg,"in") || strstr(optarg, "mm"))
 			    PaperStr = optarg;
 			else
diff --git a/foo2oak.c b/foo2oak.c
index 65acdfc..646d012 100644
--- a/foo2oak.c
+++ b/foo2oak.c
@@ -1921,7 +1921,10 @@ main(int argc, char *argv[])
 			    error(1, "Illegal Y value '%s' for -g\n", optarg);
 			break;
 	case 'm':	MediaCode = atoi(optarg); break;
-	case 'n':	Copies = atoi(optarg); break;
+	case 'n':	Copies = atoi(optarg);
+			if (Copies < 1 || Copies > 999)
+			    error(1, "Illegal value '%s' for Copies -n\n", optarg);
+			break;
 	case 'p':	PaperCode = atoi(optarg); break;
 	case 'r':	if (parse_xy(optarg, &ResX, &ResY))
 			    error(1, "Illegal format '%s' for -r\n", optarg);
diff --git a/foo2qpdl.c b/foo2qpdl.c
index 40d2093..2fd135b 100644
--- a/foo2qpdl.c
+++ b/foo2qpdl.c
@@ -1735,7 +1735,10 @@ main(int argc, char *argv[])
 			    error(1, "Illegal Y value '%s' for -g\n", optarg);
 			break;
 	case 'm':	MediaCode = atoi(optarg); break;
-	case 'n':	Copies = atoi(optarg); break;
+	case 'n':	Copies = atoi(optarg);
+			if (Copies < 1 || Copies > 999)
+			    error(1, "Illegal value '%s' for Copies -n\n", optarg);
+			break;
 	case 'p':	PaperCode = atoi(optarg); break;
 	case 'r':	if (parse_xy(optarg, &ResX, &ResY))
 			    error(1, "Illegal format '%s' for -r\n", optarg);
diff --git a/foo2slx.c b/foo2slx.c
index 7e2ffdd..75048ac 100644
--- a/foo2slx.c
+++ b/foo2slx.c
@@ -1434,7 +1434,10 @@ main(int argc, char *argv[])
 			    error(1, "Illegal Y value '%s' for -g\n", optarg);
 			break;
 	case 'm':	MediaCode = atoi(optarg); break;
-	case 'n':	Copies = atoi(optarg); break;
+	case 'n':	Copies = atoi(optarg);
+			if (Copies < 1 || Copies > 999)
+			    error(1, "Illegal value '%s' for Copies -n\n", optarg);
+			break;
 	case 'p':	PaperCode = atoi(optarg); break;
 	case 'r':	if (parse_xy(optarg, &ResX, &ResY))
 			    error(1, "Illegal format '%s' for -r\n", optarg);
diff --git a/foo2xqx.c b/foo2xqx.c
index 10b9d60..f31529b 100644
--- a/foo2xqx.c
+++ b/foo2xqx.c
@@ -1381,7 +1381,10 @@ main(int argc, char *argv[])
 			    error(1, "Illegal Y value '%s' for -g\n", optarg);
 			break;
 	case 'm':	MediaCode = atoi(optarg); break;
-	case 'n':	Copies = atoi(optarg); break;
+	case 'n':	Copies = atoi(optarg);
+			if (Copies < 1 || Copies > 999)
+			    error(1, "Illegal value '%s' for Copies -n\n", optarg);
+			break;
 	case 'p':	PaperCode = atoi(optarg); break;
 	case 'r':	if (parse_xy(optarg, &ResX, &ResY))
 			    error(1, "Illegal format '%s' for -r\n", optarg);
diff --git a/foo2zjs.c b/foo2zjs.c
index 98a2c8e..5bc87c3 100644
--- a/foo2zjs.c
+++ b/foo2zjs.c
@@ -1801,7 +1801,10 @@ main(int argc, char *argv[])
 			    error(1, "Illegal Y value '%s' for -g\n", optarg);
 			break;
 	case 'm':	MediaCode = atoi(optarg); break;
-	case 'n':	Copies = atoi(optarg); break;
+	case 'n':	Copies = atoi(optarg);
+			if (Copies < 1 || Copies > 999)
+			    error(1, "Illegal value '%s' for Copies -n\n", optarg);
+			break;
 	case 'p':	PaperCode = atoi(optarg); break;
 	case 'r':	if (parse_xy(optarg, &ResX, &ResY))
 			    error(1, "Illegal format '%s' for -r\n", optarg);