Google Drive makes it easy to store and share files in the cloud so you can collaborate securely with your teams and clients while on the go. And we understand that teams work with all kinds of files and tools to get things done. Starting today, we’re making it possible to comment directly on more file types including Microsoft Office files, PDFs and images—without having to convert them into Docs, Sheets or Slides.
When you’re collaborating with an external agency, negotiating a contract with a client or coordinating a sales agreement with a supplier, chances are you’re dealing with multiple file formats. With this update, you can now comment on those files in Drive the way you’re used to in Google Docs.
I really like how Google is making it easier to use office docs on Google Drive I think they know users are still using stand-alone office on Google Drive.