Indicate text edits
Text edit comments indicate which text should be inserted or deleted in the PDF document.
1.On the Commenting toolbar, choose Text Edits > Indicate Text Edits, and then do any of the following:
Click between the words or characters where you want to add text, and then begin typing. An insertion caret appears and the text is added to a pop-up window.
Select text, and then press Backspace or Delete. The text is marked in cross-out to indicate that it should be deleted.
Select text, and then begin typing. The selected text is marked in cross-out, and the inserted text appears in a pop-up window.
Select text, and then choose Highlight Selected Text or Underline Selected Text from the Text Edits menu.
TipYou can also use the Select Text tool to select text or place the cursor, and then choose an option from the Text Edits menu.
2.To add a note to any text edit comment, double-click the comment to open a pop-up window.
After adding text edit comments, you may also want to:
Export comments to MS Word (Windows)

Review and Comment Topics
Indicating text edits in complete Help