PDFEncryptionSettingsDialog 0 0 843 620 Encryption Settings Encryption Method Encryption algorithm <html><head/><body><p>Select encryption algorithm. AES-256 is strongly recommended, because older encryption algorithm can be potentially broken. Select older algorithms (as AES-128 or RC4) only, if you need backward compatibility. Also, choose a strong password to ensure strong encryption.</p><p>Public key security using certificate is also supported. In that case, you must select a certificate with private key, and this certificate is then used to encrypt data. User, which wants to open document encrypted with certificate, must have a private key to the certificae.</p></body></html> true Certificate Passwords Password (document open) QLineEdit::Password true QLineEdit::Password true Password (owner access) Encrypt Contents Encrypt all document contents, including document metadata true Encrypt all document contets except metadata Encrypt file attachments only Permissions Print (low resolution) Fill interactive forms Print (high resolution) Accessibility Modify document contents Assemble document (insert, rotate, delete pages...) Edit interactive items (annotations, forms, ...) Copy/extract document content Qt::Horizontal QDialogButtonBox::Cancel|QDialogButtonBox::Ok buttonBox accepted() PDFEncryptionSettingsDialog accept() 248 254 157 274 buttonBox rejected() PDFEncryptionSettingsDialog reject() 316 260 286 274