本文整理匯總了C#中iTextSharp.text.pdf.PdfStamper.SetEncryption方法的典型用法代碼示例。如果您正苦於以下問題：C# PdfStamper.SetEncryption方法的具體用法？C# PdfStamper.SetEncryption怎麽用？C# PdfStamper.SetEncryption使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類iTextSharp.text.pdf.PdfStamper的用法示例。
在下文中一共展示了PdfStamper.SetEncryption方法的4個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的C#代碼示例。
示例1: Encrypt
public void Encrypt(PdfStamper stamper)
{
int permission = 0;
foreach (int i in this.Permissions)
{
permission |= (int) i;
}
stamper.SetEncryption(this.Encryption, this.UserPwd, this.OwnerPwd, permission);
}示例2: EncryptPdf
// ---------------------------------------------------------------------------
/**
* Manipulates a PDF file src with the file dest as result
* @param src the original PDF
*/
public byte[] EncryptPdf(byte[] src) {
PdfReader reader = new PdfReader(src);
using (MemoryStream ms = new MemoryStream()) {
using (PdfStamper stamper = new PdfStamper(reader, ms)) {
stamper.SetEncryption(
USER, OWNER,
PdfWriter.ALLOW_PRINTING,
PdfWriter.ENCRYPTION_AES_128 | PdfWriter.DO_NOT_ENCRYPT_METADATA
);
}
return ms.ToArray();
}
} 示例3: Encrypt
/** Entry point to encrypt a PDF document. The encryption parameters are the same as in
* <code>PdfWriter</code>. 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.
* @param reader the read PDF
* @param os the output destination
* @param userPassword the user password. Can be null or empty
* @param ownerPassword the owner password. Can be null or empty
* @param permissions the user permissions
* @param strength128Bits <code>true</code> for 128 bit key length, <code>false</code> for 40 bit key length
* @param newInfo an optional <CODE>String</CODE> map to add or change
* the info dictionary. Entries with <CODE>null</CODE>
* values delete the key in the original info dictionary
* @throws DocumentException on error
* @throws IOException on error
*/
public static void Encrypt(PdfReader reader, Stream os, byte[] userPassword, byte[] ownerPassword, int permissions, bool strength128Bits, Dictionary<string,string> newInfo) {
PdfStamper stamper = new PdfStamper(reader, os);
stamper.SetEncryption(userPassword, ownerPassword, permissions, strength128Bits);
stamper.MoreInfo = newInfo;
stamper.Close();
}示例4: Encrypt
/** Entry point to encrypt a PDF document. The encryption parameters are the same as in
* <code>PdfWriter</code>. 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.
* @param reader the read PDF
* @param os the output destination
* @param strength <code>true</code> for 128 bit key length, <code>false</code> for 40 bit key length
* @param userPassword the user password. Can be null or empty
* @param ownerPassword the owner password. Can be null or empty
* @param permissions the user permissions
* @param newInfo an optional <CODE>String</CODE> map to add or change
* the info dictionary. Entries with <CODE>null</CODE>
* values delete the key in the original info dictionary
* @throws DocumentException on error
* @throws IOException on error
*/
public static void Encrypt(PdfReader reader, Stream os, bool strength, String userPassword, String ownerPassword, int permissions, Hashtable newInfo) {
PdfStamper stamper = new PdfStamper(reader, os);
stamper.SetEncryption(strength, userPassword, ownerPassword, permissions);
stamper.MoreInfo = newInfo;
stamper.Close();
}