updf

When you password-protect documents, only those individuals who know the password and input it correctly will be able to access the protected file or folder. Encryption is a more effective way of security, and the most prevalent kinds of encryption are 128-bit key or 256-bit AES encryption. Encryption transforms document information into unreadable cipher text. In order for authorized users to decrypt the document, they need a key, which is often in the form of a password or a digital certificate. When you use the UPDF tool to add password protection to a PDF file, the file is encrypted as…