Se crea un servicio para generar el pdf sin usar puppetter

import { Injectable } from '@nestjs/common';

import * as pdf from 'html-pdf';

@Injectable()

export class PdfService {

  generatePdf(htmlContent: string): Promise<Buffer> {

    const options: pdf.CreateOptions = {

      format: 'Letter',

      orientation: 'portrait',

    };

    return new Promise((resolve, reject) => {

      pdf.create(htmlContent, options).toBuffer((err, buffer) => {

        if (err) {

          return reject(err);

        }

        resolve(buffer);

      });

    });

  }

}