I advise that you examine the following Code Library entry on exporting the RadHtmlChart to an image or PDF so that it can be used on the client as a static image/file: http://www.telerik.com/community/code-library/aspnet-ajax/html-chart/exporting-radhtmlchart-to-png-and-pdf.aspx
. After you get the exported image you can edit it with the standard .NET methods or by using the EditableImage class
of the RadImageManager to add text for titles or images as watermarks, etc. If you find a similar way to modify PDFs in the code-behind you can use it as well. This could be done just before sending the file to the browser.
the Telerik team
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