iTextSharp .NET PDF - 无法更改PDF Producer

Question

我正在使用iTextSharp产品来更改PDF属性,如下所示.我根本无法更改"PDF Producer"属性.请建议,我哪里出错了.

代码行 信息["Producer"] ="我的制作人";

没有按预期工作.

      string sourcePath = tbPath.Text;
                IList<string> dirs = null;
                string pdfName = string.Empty;
                string OutputPath = string.Empty;

                DirectoryInfo di = new DirectoryInfo(sourcePath);
                DirectoryInfo dInfo = Directory.CreateDirectory(sourcePath + "\\" + "TempDir");

                OutputPath = Path.Combine(sourcePath,"TempDir");          

                dirs = Directory.GetFiles(di.FullName, "*.pdf").ToList();

                for (int i = 0; i <= dirs.Count - 1; i++)
                {
                    try
                    {
                        PdfReader pdfReader = new PdfReader(dirs[i]);
                        using (FileStream fileStream = new FileStream(Path.Combine(OutputPath, Path.GetFileName(dirs[i])),
                                                          FileMode.Create,
                                                          FileAccess.Write))
                        {                                         

                           PdfStamper pdfStamper = new PdfStamper(pdfReader, fileStream);

                            Dictionary<string, string> info = pdfReader.Info;
                            info["Title"] = "";
                            info["Author"] = "";
                            info["Producer"] = "My producer";   ////THIS IS NOT WORKING..                                                                

                            pdfStamper.MoreInfo = info;    
                            pdfStamper.Close();         
pdfReader.Close();                                                        

                        }

Answer 1

如果您拥有许可证密钥,则只能更改生产者行.需要从iText Software购买许可证密钥.有关如何应用许可证密钥的说明将与该密钥一起发送.

如果您想免费使用iText,则无法更改生产线.查看开源版iText中每个文件的许可证标题:

 * In accordance with Section 7(b) of the GNU Affero General Public License,
 * a covered work must retain the producer line in every PDF that is created
 * or manipulated using iText.

您的信息:iText集团已成功起诉一家德国公司,该公司在未购买许可证的情况下更改了生产线.您可以在此处找到与此案例相关的一些文档:IANAL:开发人员应该了解的有关IP和法律的内容(幻灯片57-62)

顺便说一句,我通过这次演讲赢得了JavaOne Rockstar奖:https://twitter.com/itext/status/704278659012681728

总结:如果您没有iText的商业许可,则无法合法更改iText中的生产线.如果您拥有商业许可证,则需要应用许可证密钥.