public PdfWriter(Stream os, WriterProperties properties)
: base(FileUtil.WrapWithBufferedOutputStream(os))
{
// For internal usage only
//forewarned is forearmed
this.properties = properties;
EncryptionProperties encryptProps = properties.encryptionProperties;
if (properties.IsStandardEncryptionUsed())
{
crypto = new PdfEncryption(encryptProps.userPassword, encryptProps.ownerPassword, encryptProps.standardEncryptPermissions
, encryptProps.encryptionAlgorithm, PdfEncryption.GenerateNewDocumentId());
}
else
{
if (properties.IsPublicKeyEncryptionUsed())
{
crypto = new PdfEncryption(encryptProps.publicCertificates, encryptProps.publicKeyEncryptPermissions, encryptProps
.encryptionAlgorithm);
}
}
if (properties.debugMode)
{
SetDebugMode();
}
}
public WriterProperties()
{
smartMode = false;
debugMode = false;
compressionLevel = CompressionConstants.DEFAULT_COMPRESSION;
isFullCompression = null;
encryptionProperties = new EncryptionProperties();
}
/// <summary>Entry point to encrypt a PDF document.</summary>
/// <param name="reader">the read PDF</param>
/// <param name="os">the output destination</param>
/// <param name="properties">
/// encryption properties. See
/// <see cref="EncryptionProperties"/>
/// .
/// </param>
/// <param name="newInfo">
/// an optional
/// <c>String</c>
/// map to add or change
/// the info dictionary. Entries with
/// <see langword="null"/>
/// values delete the key in the original info dictionary
/// </param>
public static void Encrypt(PdfReader reader, Stream os, EncryptionProperties properties, IDictionary <String
, String> newInfo)
{
WriterProperties writerProperties = new WriterProperties();
writerProperties.encryptionProperties = properties;
PdfWriter writer = new PdfWriter(os, writerProperties);
PdfDocument document = new PdfDocument(reader, writer);
document.GetDocumentInfo().SetMoreInfo(newInfo);
document.Close();
}
protected internal virtual void InitCryptoIfSpecified(PdfVersion version)
{
EncryptionProperties encryptProps = properties.encryptionProperties;
if (properties.IsStandardEncryptionUsed())
{
crypto = new PdfEncryption(encryptProps.userPassword, encryptProps.ownerPassword, encryptProps.standardEncryptPermissions
, encryptProps.encryptionAlgorithm, PdfEncryption.GenerateNewDocumentId(), version);
}
else
{
if (properties.IsPublicKeyEncryptionUsed())
{
crypto = new PdfEncryption(encryptProps.publicCertificates, encryptProps.publicKeyEncryptPermissions, encryptProps
.encryptionAlgorithm, version);
}
}
}
protected internal virtual void InitCryptoIfSpecified(PdfVersion version)
{
EncryptionProperties encryptProps = properties.encryptionProperties;
if (properties.IsStandardEncryptionUsed())
{
crypto = new PdfEncryption(encryptProps.userPassword, encryptProps.ownerPassword, encryptProps.standardEncryptPermissions
, encryptProps.encryptionAlgorithm, ByteUtils.GetIsoBytes(this.document.GetOriginalDocumentId().GetValue
()), version);
}
else
{
if (properties.IsPublicKeyEncryptionUsed())
{
crypto = new PdfEncryption(encryptProps.publicCertificates, encryptProps.publicKeyEncryptPermissions, encryptProps
.encryptionAlgorithm, version);
}
}
}
/// <summary>Entry point to encrypt a PDF document.</summary>
/// <param name="reader">the read PDF</param>
/// <param name="os">the output destination</param>
/// <param name="properties">
/// encryption properties. See
/// <see cref="EncryptionProperties"/>
/// .
/// </param>
public static void Encrypt(PdfReader reader, Stream os, EncryptionProperties properties)
{
Encrypt(reader, os, properties, null);
}
/// <summary>Entry point to encrypt a PDF document.</summary>
/// <param name="reader">the read PDF</param>
/// <param name="os">the output destination</param>
/// <param name="properties">
/// encryption properties. See
/// <see cref="EncryptionProperties"/>
/// .
/// </param>
/// <param name="newInfo">
/// an optional
/// <c>String</c>
/// map to add or change
/// the info dictionary. Entries with
/// <see langword="null"/>
/// values delete the key in the original info dictionary
/// </param>
public static void Encrypt(PdfReader reader, Stream os, EncryptionProperties properties, IDictionary <String
, String> newInfo)
{
new iText.Kernel.Pdf.PdfEncryptor().SetEncryptionProperties(properties).Encrypt(reader, os, newInfo);
}
/// <summary>
/// Sets the
/// <see cref="EncryptionProperties"/>
/// </summary>
/// <param name="properties">the properties to set</param>
/// <returns>
/// this
/// <see cref="PdfEncryptor"/>
/// instance
/// </returns>
public iText.Kernel.Pdf.PdfEncryptor SetEncryptionProperties(EncryptionProperties properties)
{
this.properties = properties;
return(this);
}
