Google has introduced a new feature in Google Drive to make things easier. The new feature allows you to comment on Google Drive files right from previews inside Drive without having to convert them into Docs, Sheets or Slides.
This is great because it’s fewer tabs and fewer apps, both of which are wthings I’d prefer. You can highlight lines in a file and make comments like you would on a Google Doc, and those comments will follow through in individual apps, too, like Microsoft Office applications. So if you comment on a Drive file, or even assign a task or mention a co-worker, those notes will follow the file wherever it goes.
Through blog Google said; 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. In the Drive preview pane, comment, assign tasks, or mention coworkers and the people you work can reply back, even if they’re not using G Suite. Let’s say your coworker opens a file on her Windows laptop using MS Word, she will see your comment in the file and can reply right from there
“We frequently use the comments feature in Google Docs and Slides when preparing specification documents, reviewing project proposals and creating marketing materials. With commenting in Drive Preview feature, we can now extend the same collaboration, review and validation processes to Microsoft Office Applications, images and PDFs.” says Stéphane Donzé, chief executive officer and founder of AODocs