How to send a PDF file to a WhatsApp group in Java

Using the WhatsMate WhatsApp Gateway REST API

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 Java.

To send a PDF document to a WhatsApp group in Java, do this:

  1. First, learn how to send a simple text message to a group on the official site.
  2. With the above knowledge, you can now download our sample code.
  3. Locate the file Java/
  4. Study the Java 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 Java
  6. Follow the instructions at the top of the source code to compile and run the Java program.

Happy coding :)