用其中一个就行，第一个测试正常
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第一个试了完美 //合并多个PDF public static void MergePdfFiles(string outputFilePath, params string[] inputFilePaths) { try { inputFilePaths = inputFilePaths.Where(x => !string.IsNullOrWhiteSpace(x)).ToArray(); //先去掉空值 // 创建一个新的PDF文档用于合并 PdfSharp.Pdf.PdfDocument outputDocument = new PdfSharp.Pdf.PdfDocument(); foreach (string inputFile in inputFilePaths) { // 加载要合并的PDF PdfSharp.Pdf.PdfDocument inputDocument = PdfSharp.Pdf.IO.PdfReader.Open(inputFile, PdfDocumentOpenMode.Import); // 将每个PDF的页面添加到输出文档中 for (int pageIndex = 0; pageIndex < inputDocument.PageCount; pageIndex++) { PdfSharp.Pdf.PdfPage page = inputDocument.Pages[pageIndex]; outputDocument.AddPage(page); } // 关闭输入文档 //inputDocument.Close(); } // 保存合并后的PDF文件 outputDocument.Save(outputFilePath); outputDocument.Close(); } catch (Exception ex) { throw new Exception(ex.Message); } } //这个试了不能铺满，不知什么原因 // 合并多个PDF /// <param name="SourcePath">源路径</param> /// <param name="TargetPath">目标路径</param> /// <param name="NewFileName">新文件名</param> public static void MergePDF(string SourcePath, string outputFilePath) { //需要合并的pdf集合 string[] fileList = Directory.GetFiles(SourcePath, "*.pdf", SearchOption.AllDirectories); //合并到的总PDF iTextSharp.text.pdf.PdfReader reader; iTextSharp.text.Document document = new iTextSharp.text.Document(); PdfWriter writer = PdfWriter.GetInstance(document, new FileStream(outputFilePath, FileMode.Create)); document.Open(); PdfContentByte cb = writer.DirectContent; PdfImportedPage newPage; for (int i = 0; i < fileList.Length; i++) { reader = new iTextSharp.text.pdf.PdfReader(fileList[i]); int iPageNum = reader.NumberOfPages; for (int j = 1; j <= iPageNum; j++) { document.NewPage(); newPage = writer.GetImportedPage(reader, j); cb.AddTemplate(newPage, 0, 0); } } document.Close(); } |
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