Another way to fix shutter-project#697

share/shutter/resources/system/plugins/perl/spwatermark/spwatermark

@@ -43,6 +43,7 @@ use Glib qw/TRUE FALSE/;
 use FindBin '$Bin';    #path where plugin is located
 use File::Temp qw/ tempfile tempdir /;
 use Time::HiRes qw/usleep/;
+use IPC::Run3;
 
 #load modules at custom path at runtime
 #--------------------------------------
@@ -351,19 +352,21 @@ sub apply_effect {
 	my $color = $stroke_color->get_color;
 
 	#execute imagemagick command
-	my $command1 = "convert" .
-		" -background '#00000000'" . 
-		" -fill " . "'" . sprintf( "#%04x%04x%04x%04x", $color->red, $color->green, $color->blue, $stroke_color->get_alpha ) . "'" .
-		" -pointsize " . $psize . 
-		" -gravity " . $gravity_combo->get_active_text . 
-		" -rotate " . $angle_sbutton->get_value . 
-		" label:$text " . $tmpfilename;
-	my $output1 = `$command1`;
-
-	my $command2 = "composite " . $tmpfilename . 
-		" -gravity " . $gravity_combo->get_active_text . 
-		" " . $filename . " " . $tmpfilename2;
-	my $output2 = `$command2`;
+	run3 ["convert",
+		"-background", '#00000000',
+		"-fill", sprintf( "#%04x%04x%04x%04x", $color->red, $color->green, $color->blue, $stroke_color->get_alpha ),
+		"-pointsize", $psize,
+		"-gravity", $gravity_combo->get_active_text,
+		"-rotate", $angle_sbutton->get_value,
+		"label:$text", $tmpfilename,
+	];
+
+	run3 ["composite",
+		$tmpfilename,
+		"-gravity", $gravity_combo->get_active_text,
+		$filename,
+		$tmpfilename2,
+	];
 }
 
 sub fct_update_gui {