PDFfiller came in very handy, especially with the ability to fax. Recently, I had to complete documents on behalf of my mother after my father passed away. I was limited because she had no internet, so I purchased a portable MIFI and once I realized that I could fax with PDFfiller, this eliminated the need to spend money on faxing & postage.

9/15/16: Hard to find blank forms for completion, but questions are covered well by support folks. Default is yearly subscription, but support folks were able to convert to monthly subscription at desired level. Problem with changing previous form required upgrade to yearly business plan. The erase tool only works with upgraded plans.

I like to use PDF filler.com because I can fill the entire form on the computer, except the places where I need to sign it. Also, it has an option to fill the form on the computer or print it out with blank spaces which I can fill it out manually with a pen. Finally, I only pay for the program as long as my subscription is active.