This is a free and popular PDF Reader software. Foxit PDF Reader also comes with a paid version but the free version also offers good features. It provides a free trial of the paid version for up to ...

How to Insert Text, Sign a PDF With Adobe Acrobat Reader Need to edit a PDF document but don’t want to pay for the more expensive Adobe editors? You can add text to and sign a PDF with just the free ...

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.