How to: Insert Inline Picture
To insert a picture in line with text, use the DocumentImageCollection.Insert method.
Note
A complete sample project is available at https://github.com/DevExpress-Examples/word-processing-document-api-examples-t418535
Document document = server.Document;
DocumentPosition pos = document.Range.Start;
document.Images.Insert(pos, DocumentImageSource.FromFile("Documents\\beverages.png"));