With DocuSign Ink for Windows Phone, you can electronically sign, send and store documents from anywhere at anytime. There’s no need for printing, faxing, scanning, or overnight deliveries.

With Document Cloud users can create, review, approve, sign, and track documents both on desktops and mobile devices. Adobe makes money off these services by charging a subscription-based fee.

When you need to sign a document that's sent to you as a PDF or a Word file, you can easily take care of that using your phone. Whether you use an iPhone or an Android phone, both include built-in ...

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.