You can spell-check the text you typed in note comments and form fields. If you want to check the spelling in a comment, first open the comment window.
You cannot check the spelling of text in the underlying Adobe PDF document.
Edit the unrecognized word by typing. To undo your change, click Undo Edit. To accept your change, click Change. To change all instances of the unrecognized word, click Change All.
Select the correct version of the unrecognized word from the Suggested Corrections section and click Change. Or, simply double-click the correct version of the word. To change all instances of the word to the selected correct version, click Change All.
Click Ignore if you don’t want to change the word and want to continue with the check.
Click Ignore All to ignore every instance of the word. Click Add if you want to add the word to your personal dictionary.