Adjust page size

GroupDocs.Viewer allows setting output page size for rendering Email messages into HTML, PDF, and images. To enable this feature, the setPageSize() property of the EmailOptions class is used. The following are the pages sizes that are supported and provided in setPageSize() enumeration:

The following are the steps to set size for email message:

    try (Viewer viewer = new Viewer("sample.msg")) {
        PdfViewOptions viewOptions = new PdfViewOptions();