messages.toolbar.zoom.zoomLevel String (default: "Zoom Level")

To run the below example, open it in Dojo

Example - set custom text for Zoom In message

<div id="pdfviewer"></div>
<script type="module">
  $("#pdfviewer").kendoPDFViewer({
    pdfjsProcessing: {
      file: "https://demos.telerik.com/kendo-ui/content/web/pdfViewer/sample.pdf"
    },
    messages: {
      toolbar: {
        zoom: {
          zoomLevel: "Custom Zoom Level Message"                  
        }
      }
    }
  });
</script>