Only UTF8 is supported, so the choices are unavailable for the Advanced OCR Zonal profile and all profiles based on it. 

These options apply only if one of the selected languages is Chinese, Japanese, or Korean. For best recognition results, select the Horizontal or Vertical options (rather than the Autodetect option) based on the recognized zone.

Select the orientation of the text on the form.

This is a list of languages supported by the recognition engine.

This list contains the languages you have selected. Languages are added to the column in the order they are selected from the Available list. The first language that appears at the top of the list is the primary language, and the rest are secondary languages. You can select up to five languages.

You can add or remove items from the available or selected list by double-clicking a language. User-defined dictionaries are not supported if you select Chinese, Japanese, or Korean as the primary language.

Adds a language to the Selected list. Select a language from the Available list and click Add. You can have a maximum of five languages in the Selected list.

Removes a language from the Selected list. Select a language from the Selected list and click Remove.