PDF security features

PDF security features help protect the content of a PDF file from unauthorized access and modifications. These features include password protection, which restricts opening or editing the document unless the correct password is entered. Additionally, users can set permissions to control actions like printing or copying content. Digital signatures ensure the document's authenticity and integrity, confirming it hasn't been altered. Encryption is used to secure the file's data, making it readable only to those with the right access. Together, these features help maintain privacy and safeguard sensitive information in PDF documents.