docx-js/usage/text-box.md

Text Box

Similar Text Frames, but the difference being that it is VML Shape based.

!> Text Boxes requires an understanding of Paragraphs.

Text boxes are paragraphs of text in a document which are positioned in a separate region or frame in the document, and can be positioned with a specific size and position relative to non-frame paragraphs in the current document.

Intro

To make a Text Box, simply create a Textbox object inside the Document:

new Textbox({
    alignment: "center",
    children: [
        new Paragraph({
            children: [new TextRun("Hi i'm a textbox!")],
        }),
    ],
    style: {
        width: "200pt",
        height: "auto",
    },
});