Do you have an example of how to create a two column page then insert tabs, image and text into each of the two columns?
This shows how to create columns https://reference.aspose.com/words/net
To insert a tab stop using DocumentBuilder you should DocumentBuilder.Write(“\x0009”) or DocumentBuilder.Write(ControlChar.Tab);
To specify custom tab settings if you want, use ParagraphFormat.TabStops. In the case with DocumentBuilder, use DocumentBuilder.ParagraphFormat.TabStops.
To insert an image DocumentBuilder.InsertImage.