There's no need to use scanner apps before you upload an important document to Drive. Google's app can do that for you on both Android and iPhone.

Learn how to sign a PDF in Google Drive using the Drawings tool in Google Docs and third-party add-ons such as DocHub and Adobe Acrobat.

Google’s push to optimize its first-party apps on tablets continues with Drive for Android adding the ability to annotate PDFs using a stylus or finger.

File and folder management in Google Drive on the web is pretty straightforward. Hover over files and folders to see options ...