Add password protection to PDF files. Set user and owner passwords with permission controls.
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Knowledge Base
Set a user password (required to open the document) and an owner password (required to edit, print or copy content). Both can be set independently.
Restrict printing, copying text, editing content, and adding annotations. Permissions are enforced by PDF reader software that respects PDF standards.
PDF password protection uses AES-256 encryption. It is secure against casual access. For highly sensitive documents, consider additional security measures.
Without the password, removal is not possible. With the correct password, any PDF tool that supports decryption can remove the protection.