Add password (Encrypt)

The Add Password feature allows users to add password protection to PDF documents and set encryption key lengths and permission settings. This is useful for users who need to protect PDF document content. For example, in legal documents, users may need to add password protection to contracts or agreements to ensure their security; in enterprise document management, users may need to add password protection to important documents to ensure their confidentiality. Additionally, this feature can be used to set permissions for PDF documents, such as preventing printing, modification, or content extraction, for better document management and control. By using the add password feature, users can ensure document security and confidentiality and easily manage and distribute them.