How to customize SfRichTextRibbon in WPF RichTextBox (SfRichTextBoxAdv)?
The SfRichTextRibbon control is a customized Ribbon with primary functionalities for the WPF RichTextBox (SfRichTextBoxAdv) control, and there is no possibility to add or remove any items from SfRichTextRibbon. Instead, you can implement your own customized ribbon for SfRichTextBoxAdv using the Ribbon control based on your requirements.
The following sample demonstrates how to implement a customized ribbon for the SfRichTextBoxAdv control.