The following demo shows the easiest way to export RadHtmlChart: http://demos.telerik.com/aspnet-ajax/client-export-manager/applicationscenarios/export-radhtmlchart/defaultcs.aspx.
The following code library entry shows a more complex approach that uses a third party tool to convert the SVG string to an image on the server: http://www.telerik.com/support/code-library/exporting-radhtmlchart-to-png-and-pdf.
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