Working on server-side

To work on server-side you need to import definitions from pdfmake-wrapper/server and use DocumentDefinition class, instead of PdfmakeWrapper class. PdfmakeWrapper class is useful on the client-side, this is because this class provides some methods that work only in the browser (setFonts and create), but remember that PdfmakeWrapper extends from DocumentDefinition which is the class that contains all the methods related to the document itself, except for setFonts and create methods which are only useful on client-side.

You can generate your pdf documents like this:

import { DocumentDefinition } from 'pdfmake-wrapper/server';
import Pdfmake from 'pdfmake';
import fs from 'fs';

const printer = new Pdfmake({
    Roboto: {
        normal: './your/path/Roboto-Regular.ttf',
        bold: './your/path/Roboto-Medium.ttf',
        italics: './your/path/Roboto-Italic.ttf',
        bolditalics: './your/path/Roboto-MediumItalic.ttf'
    }
});

/**
 * By default, Pdfmake uses 'Roboto' fonts, if you want 
 * to use custom fonts, you need to use the useFont method 
 * like this:
 * 
 * DocumentDefinition.useFont('MyCustomFonts');
 */

const doc = new DocumentDefinition();

doc.add('Hello world!');

const pdf = printer.createPdfKitDocument(doc.getDefinition());

pdf.pipe(fs.createWriteStream('document.pdf'));
pdf.end();

NOTE

Unlike client-side, when working on server-side, fonts do not need to be generated, instead, you need to pass the path where your fonts are stored. To know more about working with fonts, go to Working with fonts section.