Adding a base64 encoded image to Microsoft Word document

[Toymo]

I want to add an image to my Word document which should be added as a base64 encoded image. I have a jpeg. How can I add it to my Word document as a base64 encoded data? I did some research and got to know that there is this site which converts an image to base64 encoded data. But I have no idea as to how I can add it to the Word document. Thank you in advance.