Click into the text box and add the desired text ... How to type on a PDF on a PC or Mac using Adobe Acrobat Reader DC If you have Adobe's Acrobat Reader DC (which is free to download) on your ...

In other words, Adobe Reader won't let you add text. What you need is a program that's a little more accommodating, PDF-wise. Try Foxit Reader 4.3, which allows you to add text to any PDF.

Widely used PDF files capture text and images nearly exactly as they display in the application that created them. The format is designed to store text and both bitmapped and vector images ...