Interface IPdfEncryptionSettings
- Namespace
- iTextSharp.text.pdf.interfaces
- Assembly
- iTextSharp.LGPLv2.Core.dll
Encryption settings are described in section 3.5 (more specifically section 3.5.2) of the PDF Reference 1.7. They are explained in section 3.3.3 of the book 'iText in Action'. The values of the different preferences were originally stored in class PdfWriter, but they have been moved to this separate interface for reasons of convenience.
public interface IPdfEncryptionSettingsMethods
SetEncryption(X509Certificate[], int[], int)
Sets the certificate encryption options for this document. An array of one or more public certificates must be provided together with an array of the same size for the permissions for each certificate. The open permissions for the document can be AllowPrinting, AllowModifyContents, AllowCopy, AllowModifyAnnotations, AllowFillIn, AllowScreenReaders, AllowAssembly and AllowDegradedPrinting. The permissions can be combined by ORing them. Optionally DO_NOT_ENCRYPT_METADATA can be ored to output the metadata in cleartext @throws DocumentException if the document is already open
void SetEncryption(X509Certificate[] certs, int[] permissions, int encryptionType)Parameters
certsX509Certificate[]the public certificates to be used for the encryption
permissionsint[]the user permissions for each of the certicates
encryptionTypeintthe type of encryption. It can be one of STANDARD_ENCRYPTION_40, STANDARD_ENCRYPTION_128 or ENCRYPTION_AES128.
SetEncryption(byte[], byte[], int, int)
Sets the encryption options for this document. The userPassword and the ownerPassword can be null or have zero length. In this case the ownerPassword is replaced by a random string. The open permissions for the document can be AllowPrinting, AllowModifyContents, AllowCopy, AllowModifyAnnotations, AllowFillIn, AllowScreenReaders, AllowAssembly and AllowDegradedPrinting. The permissions can be combined by ORing them. Optionally DO_NOT_ENCRYPT_METADATA can be ored to output the metadata in cleartext @throws DocumentException if the document is already open
void SetEncryption(byte[] userPassword, byte[] ownerPassword, int permissions, int encryptionType)