Can you write over a PDF file?

It's a little different than changing the existing text in a PDF file, but it's still simple - simply follow the steps below:

1. In the Acrobat PDF Editor, open your file.
2. On the right side of the screen, click Fill & Sign.
3. Select the Add Text tool, which is represented by an upper-case 'A' and a lower-case 'b.'
4. Start typing anywhere in the PDF where you'd like to add text.

Read more