Up to 2,000 characters can be converted at a time. You can also capture the settings you have dialed in (as lines of text) to save in another document. This can be useful if you are publishing a newsletter or book of ciphers, and want to keep the settings you used with each cipher along with the cipher itself. Here are the main features: *Easy to use. Type into the plain-text or the cypher-text box, and the converted text is immediately displayed. *Easy to transfer. You can select all the converted text and paste it into any other text document. *Easy to adjust. Any substitution offset, forward or reverse can be dialed in. *Easy to save. The settings you dial in can also be saved as text for your notes. Caveat Emptor: These ancient styles of ciphers are very simple and easy to decode! This is simply a fun utility, and is not intended for serious "secret message" work.