When receiving a digital document such as a PDF or Word file that needs your signature, you can easily take care of that using your phone. Whether you use an iPhone or an Android phone, both ...

Sign with Google Drive on Android or iPhone The Google Drive app -- included on all Android phones and can be downloaded onto an iPhone -- includes markup tools that make it easy to sign a document.

Select Link if you want to insert the URL of your scanned document. How to extract text from a PDF file in Google Drive Google Docs does not support attachments in PDF format.

Android 4.4 KitKat users can create and edit Microsoft Office files without even having to open the Play Store.