Tension Software has updated CryptoEdit (http://www.pomola.com/products_cryptoedit/cryptoedit.html), a Mac OS X program to create and edit protected encrypted documents, to version 1.6.1. The update offers improvement in the internal engine. Also, opening an encrypted document the password dialog is now centered and not resizable.
CryptoEdit can import from other documents in standard TEXT or RTF or RTFD (RTF + images) . Documents can also be exported as TEXT, RTF or standard RTFD (included images)
CryptoEdit document are saved always encrypted for security purpose. Saving a document containing images will create on disk a single file with all the text and images encrypted in a single file. Any data the user puts in the document is encrypted and not redeable without the right password.
CrytopEdit costs US$30, though version 1.6/1 is a free update for registered users.