EncryptionPermissions Property

The access permissions granted when opening the document

The operations granted in a PDF document are controlled using permission flags. In order to set permission flags, the PDF document must be encrypted and have an owner password.

The restricted permissions apply whenever the document is opened with a password other than the owner password. The owner password is required to initially set or later change the permission flags.

When opening an encrypted document, the access permissions for the document can be read using Permissions. Note that the permissions might be different from the "Document Restrictions Summary" displayed in Adobe Acrobat.