MEO is a free and powerful data encryption application to encrypt or decrypt files of any type, including Microsoft Word, email and PDF documents on Mac OS X. MEO allows you to protect your sensitive data against un-authorized viewers by utilizing the latest data encryption technologies. Keep your documents safe and secure with this free data encryption software. MEO also features the ability to create self-extracting encrypted files. This is handy for those who like the freedom to view their encrypted files without the need for installing any other encryption software. Also, many downloads supply a checksum or hash value for you to verify the integrity of your download. Meo allows you to create and verify MD5 checksums, SHA-1 hashes and Tiger Tree hashes.