Progress Telerik UI for Silverlight

Section Columns

RadRichTextBox supports continuous section breaks, which allow entering a section break and starting a new section on the same page. This is very useful for creating a formatting change, such as displaying different number of columns on a page.
RTL and IME

Allow entering text in various languages thanks to the built-in Input Method Editor and Right-to-Left support.
Mail Merge

Create or open existing templates and fill in different data taken from a database, spreadsheet or any other source. Preview the results in the RichTextBox or proceed with exporting.
Different Views and Printing

Use a standard text box layout or a paged view with various sizes and headers and footers. Utilize the printing functionality that comes out-of-the-box.
VS Wizard

Add a fully featured rich text editor to your solution in under a minute, thanks to the click-through interface provided by Visual Studio's wizard.
MS Word-Like Authoring

Provide Microsoft Word-like authoring and editing in your applications using a familiar interface for your end users.
Intuitive Editing Experience

Get an intuitive editing experience, thanks to the integrated RibbonView, context menus, mini toolbars and dozens of dialogs designed to gear the functionality of the control.
Document Protection

Define different editing restrictions and enforce them on different parts of the document. Import and export protected documents in the supported file formats.
Import and Export

This control enables you to import and export files to and from DOCX, RTF, HTML, XAML and TXT, as well as export files to PDF without writing a single line of code.
Rich Document Model Support

Get a more complete rich text editing experience with support for Lists, Tables, Inline and Floating Images, Hyperlinks, Bookmarks and Comments.
Markup and Navigation

Markup your documents with Word-like comments and enable document navigation with a built-in Bookmark system.
Spell Checker and Image Editor

The integrated spell checker and image editor provide on-the-fly proofing and tweaking of images, all without leaving the document UI.
Styles

Take advantage of a rich pallet of predefined styles, or create your custom styles and apply them to text and tables from the Styles and Table styles galleries.
Merging Documents

RadRichTextBox features API which enables users to append one RadDocument instance to another or to insert one RadDocument instance at specified position of another RadDocument. Utility class settings aids the handling of merging conflicts if such arise.
Track Changes

Track all changes made in the document and separate them semantically, as well as visually from the rest of the content.