Disable characters grouping

To improve content positioning when rendering into PDF GroupDocs.Viewer provides setDisableCharsGrouping() as shown below:

    try (Viewer viewer = new Viewer("sample.pdf")) {
        HtmlViewOptions viewOptions = HtmlViewOptions.forEmbeddedResources();
        viewOptions.getPdfOptions().setDisableCharsGrouping(true);
    
        viewer.view(viewOptions);
    }