PDF Encrypt is a versatile and robust software that enables users to apply various encryption options to existing PDF files. It can set permissions, add user and owner passwords, and use 40-bit, 128-bit, and AES encryption. This software is ideal for preventing unauthorized printing of PDF documents.
There are two passwords that you can apply to a PDF: the owner password and the user password. The owner password grants you full access to a PDF, even if a user password is set. The user password, on the other hand, restricts access based on the PDF's password protection level. If printing is disabled, the user cannot print it, and so on.
PDF Encrypt offers numerous features, including support for Adobe Standard 40-bit Encryption and Adobe Advanced 128-bit Encryption, as well as AES encryption. It can password-protect the opening of a document, and supports both user passwords and owner passwords. It can prevent printing of the document, prevent copying of text or graphics, and prevent changes to the document. You can add printing, copying, and changing permissions to an encrypted PDF file.
PDF Encrypt is easy to use, and doesn't require Adobe Acrobat software to run. It operates quickly, and supports PDF1.6 protocol (Acrobat 8.x). You can set the document title, subject, author, keywords, and creator to the encrypted PDF file or files. It also includes a command line operation, which works for manual use or for inclusion in scripts. With the windows version, you can perform batch operations on many files.
Version 4.0.1.5: PDF Encrypt Software encrypted pdf documents & generates preferable password to decrypt.