Whatsapp web which was officially introduced last year january, when it only had the option to share media and camera options. and also launched Whatsapp app for windows and Mac.
It was also discovered through testing that a user cannot send a document from the desktop whatsapp until the receiver has also updated the app to the same or newer Android app version. The WhatsApp desktop app just as the Web client requires users to scan a QR code using the WhatsApp app on the smartphone. Unlike that of the smartphone where users will have to look for Web menu under Settings. you can ow freely share an receive document on your web whatsapp.