Please look for the same topic in the forum for context. @Todor: Am attaching the wmf file and png file that don't get rendered.
Hi Shankar Ram, We tested the attached .wmf image with our SDK demo (https://github.com/telerik/xaml-sdk/tree/master/RichTextBox/WindowsMetafileFormatImageDecoder) and it is opened successfully. Therefore, I will proceed with closing this item. If you are experiencing any issues with our controls, it is best to contact us through our support ticketing system (http://www.telerik.com/account/support-tickets/available-support-list.aspx). Regards, Tanya