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.

To add your signature to another spot or a subsequent PDF, click on the Sign icon and choose your saved signature. After you’ve added text and signed the PDF, save the file. You may want to give ...

You will see all that highlighted text in that PDF viewer/reader ... To achieve this, you can use alternative approaches, such as adding new text boxes that overlay the original text in the ...