How to send a PDF file to a WhatsApp group in Node.js

Using the WhatsMate WhatsApp Gateway REST API

Posted on January 22, 2018   Share on Facebook Share on LinkedIn Share on Twitter Share on Google+

Last reviewed: April 17, 2024  

This article shows you how to send a document (e.g. a PDF file, an MP4 file, a WAV file, etc.) to a WhatsApp group in Node.js (JavaScript).

To send a PDF document in to a WhatsApp group in Node.js, do this:

  1. First, learn how to send a simple text message on the official site.
  2. With the above knowledge, you can now download our sample code.
  3. Locate the file nodejs/send-pdf-group.js.
  4. Study the Node.js source code and customize the TODO/FIXME lines.
    • Among other things, you must name your group creatively. Otherwise, the group may not receive the message.
  5. Change to the directory containing the script: cd nodejs
  6. Run the script to send your group the first PDF file: ./send-pdf-group.js

Happy coding :)