Adding text fields and other form elements to create editable PDF forms in Adobe Acrobat Professional XI is a straightforward process. These elements create an interactive document that is ...

This post helps to add a text box to PDF using a free software and an online tool. You can adjust the size of text box, text style, etc.

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.

Add Text to Fillable PDFs To get started with adding text to a PDF on your Mac, first check whether the document already has editable fields, a practice that's especially common with business forms.