In business, while you trudge from meeting to meeting, you may be required to scan and sign documents on the go. To this end, apps like HelloFax can make your life easier.  

This app can be used to import emailed .pdf files or take an image of the document you need to sign. Once this is done, you can use your finger to create a realistic signature, and send the document on via email. 

Read more at ZDNet

Download HelloSign for iOS