WhatsApp can do more than send messages and photos. A hidden tool inside the app turns stacks of paper into tidy digital files in just a few taps.

You have the option to convert Google Docs into PDFs and either save them to your computer or send them as an email ...

You can convert any Word document to an editable Google Doc by uploading it to Google Drive.

This week, Microsoft quietly announced a small but important change to Word. The popular word-processing software will now automatically save documents to OneDrive, Microsoft's cloud platform.