Note: This illustration is applied to DNN version 6.x.x
Go to your root folder > DesktopModules > Admin > RadEditorProvider.
Then looks for wording ContentFilters as shown below:
You can leave the value to "None", if you do not want to perform any filters, or you can have a look on those available filters. Those filters references are from sourced from Teleric website.
|RemoveScripts||This filter deletes the script tags to reduce the possibility of cross-site scripting and other script-related problems|
|EncodeScripts||This filter encodes all script tags from the content.|
|MakeUrlsAbsolute||This filter makes all src and href attributes in the editor content have absolute URLs|
|FixUlBoldItalic||This filter remove deprecated U tags and replace them with CSS - XHTML|
|FixEnclosingP||This filter removes a paragraph if the whole content is inside it|
|IECleanAnchors||This filter removes the current page href from all anchor (#) links|
|MozEmStrong||This filter changes b,strong and i,em in Mozilla browsers|
|ConvertFontToSpan||This filter changes deprecated font tags to compliant span tags|
|ConvertToXhtml||This filter converts the HTML from the editor content area to valid XHTML|
|IndentHTMLContent||This filter indents the HTML content so it is more readable when you view the code|
|ConvertCharactersToEntities||This filter converts reserved characters to their html entity names.|
|ConvertInlineStylesToAttributes||This filter converts XHTML compliant inline style attributes to Email compliant element attributes.|
|PdfExportFilter||This filter fixes some pdf export issues.|
|DefaultFilters||This filter enables all default filters|
Note: if you want to use more than filter, you can separate them by comma.