pkiNote Free Edition is a free software that can be used to encrypt and digitally sign text using X.509 certificates. You can then create secure abstracts in documents which will be encrypted, post encrypted web pages, create signed text in any page.
This software is a demonstration of an SDK that we have developed. We can encrypt original media files like .avi, .mkv, .jpg without changing their format and replacing original content with demo content. These secured files have still the same extenstion (.jpg, .avi) but original content can be seen only by authorized users.
Right now on the market most of the software creates a secured containers of the files, e.g. a original file is placed inside an encrypted container. SDK that we have developed allows us to encrypt original content inside the original file (.avi, .jpg) and place a demo for unathorized users. Thus we solve the problem with copy operation insecurity and content distribution.
Target users are corporate users who are willing to incorporate additional security to their content.