Make font and alignment settings available for interactive PDF text fields
I'm surprised that this hasn't been addressed yet. Native copy adjustment should be something carried over from previous editions as opposed to requesting it as a new feature.
If you first create the form in InDesign then you can open it in Adobe Acrobat Pro, go to tools>form fields, ctrl+click or right click the field you want to change, select properties from dropdown menu, then go to options and there will be an option for changing the text alignment.
Thomas Southall commented
InDesign is a GREAT tool, but I found the inability to align text form fields to be a huge disappointment. It's the first time I remember having to beg pardon of one of my clients for a (seemingly, anyway) obvious missing feature. I rely on InDesign to provide terrific-looking documents for my clients, and it usually doesn't let me down. This time, though, I was really surprised when I couldn't align a PDF text form for a client. I hope there will be a fix for this soon.