What’s the difference between editing and adding text in a PDF?
Editing a PDF involves changing the actual text of the document, whereas adding text is more like annotating. Editing is difficult and in many cases not worth it—it is better to go back to the course document and amend it before creating a new PDF.
Adding text to a PDF is simple with an online tool like the QuillBot PDF editor. As well as text, you can add images, highlighting, and drawings.