The program can read over 120 languages with multiple alphabets:
Latin, Greek, Cyrillic, Chinese, Japanese and Korean. See the list in
the OCR panel of the Options dialog box.
A listing is also provided on the Nuance web site.
This icon indicates a language with dictionary support. These
are currently: Catalan, Czech, Danish, Dutch, English, Esperanto, Finnish,
French, German, Greek, Hungarian, Italian, Norwegian, Polish, Portuguese,
Russian, Slovenian, Spanish and Swedish. These dictionaries are used,
along with user dictionaries and professional dictionaries,
to assist in the recognition process and to provide suggestions during
proofing.
For a list of the available professional dictionaries, see
the OCR panel of the Options dialog box.
Multiple-engine recognition is available for nearly all dictionary
languages. Each running recognition engine's dictionary is consulted during
recognition and suggestions may be taken from any of them.
You can choose to have non-dictionary words underlined in
the Text Editor. During proofing, you will see these words. Sometimes
words will not be flagged as "non-dictionary" even if no dictionary
contains them. This may happen if multiple recognition engines generate
an identical result with high confidence, or if a "non-dictionary"
word appears many times in a document.
If you make a multiple language selection, all characters
needed for the selected languages are validated for recognition. You can
also validate characters individually, to supplement those validated by
your language choice.
If you select more than one language with dictionary support,
all dictionaries involved are consulted, so you may get suggestions in
more than one language.
Dictionaries, proofing and training are not available for
Japanese, Korean or Chinese and these languages should not be combined
with any others. See Asian language
recognition.
Latin alphabet:
This alphabet is used for most of the supported languages.
When you choose one or more languages for recognition, all the necessary
accented letters are validated as acceptable OCR solutions.
Greek alphabet:
The Greek alphabet is used for the Greek language. OmniPage
supports recognition of characters needed for reading Ancient Greek. This
is what Classical Greek text looks like:

This is what Modern Greek looks like:

Here are the supported characters:

When reading Greek, the letters of the English alphabet can
still be recognized. You can read, edit and proof Greek texts even if
your computer has no Greek font files or Code Page support. But Greek
support is needed to handle the exported text correctly.
Cyrillic alphabet:
The following languages are written with the Cyrillic alphabet:
Russian, Bulgarian, Byelorussian, Chechen, Kabardian, Macedonian, Moldavian,
Serbian and Ukrainian.
Russian text looks like this:

When reading Cyrillic languages, the letters of the English
alphabet can still be recognized. Sometimes words are written with letters
from the English alphabet in the middle of Cyrillic texts. OmniPage can
handle them.
You can read, edit and proof Cyrillic texts even if your
computer has no Cyrillic font files or Code Page support. But Cyrillic
support is needed to handle the exported text correctly.
The following table shows which Cyrillic characters are supported.
Not all of these characters are validated for Russian or any other single
language.

Asian language support (Japanese,
Chinese, Korean) is detailed in a separate
topic.