The 1.0 version of QDocument for Mac is available as a free download on our website. This free Mac application was originally developed by BicDroid Inc. QDocument for Mac belongs to Security Tools.
From the developer:
QDocument protects your selected documents whether at rest, in motion, on your own devices, over clouds, or in the Internet while offering transparent secure sharing through any channels such as email attachment, shared folders over clouds, shared links, portable drivers, etc.
You may want to check out more software for Mac, such as MacAppStuff Encrypt, TelnetLauncher or Kremlin Encrypt, which might be related to QDocument.