PDF (adobe.com)

Enable auto spell check

Minimize spelling errors when typing using the inline spell checker in Contribute. Any spelling errors are flagged with a red squiggle below the incorrect word when you are in the Edit mode. Right-click the flagged word to display options suggested by the dictionary. After you choose the correct option, the flagged word is replaced with the selected word.

When you change the dictionary, the background spell checker scans the entire document using the selected dictionary. Any errors flagged with the previous dictionary are removed.

Note: Incorrect words are flagged only when the page is in the edit mode.
  1. In your draft, select Edit > Preferences.

  2. Select Editing from the panel on the left.

  3. Select Enable Spell Checking In The Background.