docx-js/docs/usage/page-numbers.md

Page Numbers

This feature allows you to set page numbers on each page

?> Note: This feature only works on Headers and Footers

new Paragraph({
    children: [
        new TextRun({
            children: ["Page #: ", PageNumber.CURRENT],
        })
    ]
})

Current page number

PageNumber.CURRENT

For example:

new Paragraph({
    children: [
        new TextRun({
            children: ["Page Number ", PageNumber.CURRENT],
        })
    ]
})

Total number of pages

PageNumber.TOTAL_PAGES

For example:

new Paragraph({
    children: [
        new TextRun({
            children: ["Total Pages Number: ", PageNumber.TOTAL_PAGES],
        })
    ]
})

Both

You can combine the two to get "Page 2 of 10" effect:

new Paragraph({
    children: [
        new TextRun("My awesome text here for my university dissertation. ")
        new TextRun({
            children: ["Page ", PageNumber.CURRENT, " of ", PageNumber.TOTAL_PAGES],
        })
    ]
})

Examples

Simple Example

Adding page numbers to Header and Footer

Example

Source: https://github.com/dolanmiu/docx/blob/master/demo/39-page-numbers.ts