Miscellaneous
The german original can be downloaded from here.
Encrypt PDF eBooks with a specific user password to stem unauthorized redistribution.
Encrypt PDF documents to stem unauthorized changes.
The SetaPDF-Encryptor API is a collection of PHP classes facilitating PHP developers to encrypt existing PDF documents with up to 256-bit with the standard (40/128-bit) and AES (Advanced Encryption Standard - 128/256-bit) algorithms.
The API supports standard PDF encryption with user and owner passwords or certificate-based encryption.
The simple interface allows easy encryption of existing document within minutes.
