Optional buttonThe position where the "Page tools" button should be inserted. Use false or -1 to skip insertion. Undefined means the position will be determined automatically.
Optional toolbarThe page tools toolbar layout.
Default layout: ["rotate-image", "flip-horizontal", "flip-vertical", "crop-image", "resize-image"]
<script src="gcimageviewer.js"></script></head>
<script src="plugins/pageTools.js"></script>
<script>
var viewer = new DsImageViewer("#root");
var pageToolsPlugin = new PageToolsPlugin( { toolbarLayout: ["rotate-image", "flip-horizontal"] } );
viewer.addPlugin(pageToolsPlugin);
</script>
PageToolsPlugin options.