This is a viewer for CypherGuard PDF (https://www.cyphertec.co.jp/services/cypherguard/products/#CypherGuard_PDF), which protects PDF documents using cryptographic technology.
In addition to regular PDF documents, you can also view encrypted PDF documents after authentication.
* CypherGuard PDF content files (.cpd files) that the distributor does not permit viewing on iOS cannot be viewed.
* To protect the content, this app does not support file printing.