I have PDF pack. How to I upgrade to something that allows me to save the information I fill in and sign on forms?

Hi Debbie,

As you are the subscriber of Adobe PDF Pack, then you should be able to Fill & Sign the document. It also depends the type of file you are working with and whether you are allowed to fill and save the data or not?

It is a free application so you can access the Fill & Sign app or Adobe Reader DC desktop application  to complete the task.

Using Acrobat Reader DC Fill & Sign

Fill and sign PDF forms | Adobe Acrobat DC

Regards,

Akanchha