User manual

RichEdit.Maui and CodeEdit.Maui provide native editing controls over library-owned documents. The document owns authored content, revision identity, saved state, and shared undo history. Each view owns its selection, composition, presentation, and native resources.

Use case	Control and document
Formatted paragraphs, lists, tables, images, comments, and tracked changes	RichEditor with RichEdit.Core.RichDocument
Source text, multiple carets, syntax colors, folding, and application language tools	CodeEditor with CodeDocument
Read-only original or final tracked-change preview	RichReviewView with a shared RichDocument

Both editable controls use native text engines on Windows, Android, iOS, and Mac Catalyst. No WebView is used. Multiple controls may share a document on one dispatcher, with independent selections and one undo sequence.

Start with installation, documents, and editing. See platform behavior for rendering and performance boundaries, RTF support for persistence fidelity and the Windows, iOS, Mac Catalyst, and Android feature matrices, and the migration guide for upgrading an application.

Examples use RichEdit.Core for rich semantics, TextEdit.Core for source coordinates, and the appropriate MAUI control namespace. A rich text projection is a snapshot-bound mapping, not an editable flat document.