Rich Text Editor Unsupported Features

Mar 23, 2026

This topic lists popular features available in common rich text editors (such as MS Word) that are not currently supported in the DevExpress ASP.NET Core RichEdit control.

Unsupported Content Elements

Comments
Track changes
Shapes
Footnotes and endnotes
Formulas and charts
Fillable form
Continuous section break
Frames
Paragraph borders
Watermarks
Repetition of table headings on subsequent pages

Unsupported Features

Zoom
Right-to-left support
Styles customization
Themes

Unsupported Format

The DOC format is not supported. You can use third-party server libraries for conversion.

Non-Significant Whitespace Rendering

RichEdit treats all whitespace characters as significant. It displays every space exactly as it appears in the text stream.

In Microsoft Word, the application discards leading, trailing, or consecutive spaces by default. Word only displays these spaces if the text run contains the xml:space="preserve" attribute. Because of this difference, text in RichEdit may occupy more horizontal space or include more padding than the same content in Word.