WhatsApp is the most popular messaging app on the planet ...but the Meta-owned app now hopes to become your go-to Artificial Intelligence (AI) assistant. Whether you want a quick summary of a dense PDF or some help with a complex spreadsheet, WhatsApp could soon let you drop these documents into the chat for help. The feature isn't available yet, but the keen-sighted team at WABetaInfo clocked that the messaging service is bringing a handy new trick to iOS and Android users – the ability to send