I want to edit a form created by Dell.com, it is a pdf and when I try to edit it tells me that I cannnot because I do not have that font

I have Adobe Acrobat X Pro and I need to edit a form from Dell.com which I saved as a PDF in Adobe Acrobat.

I can not edit this document because I do not have the correct font.

I tried installing the typewriter tool and that did not work.

I tried changing the font but it was so difficult and you have to do it for every text box.

My old Adobe Acrobat I could change with no problem...

Have any ideas?

Thank You..

Paula