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word、excel、ppt转换成pdf

word、excel、ppt转换成pdf,调用office的API，原理是调用的office的另存为pdf的命令，将文件保存为pdf格式的文件。

office必须是2007版本，office另存为pdf必须安装一个第三方的插件，excel转换成pdf要开启打印服务，下载地址SaveAsPDFandXPS.exe。

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View Code 
  1 using System;
  2 using System.Data;
  3 using System.Configuration;
  4 using System.Web;
  5 using System.Web.Security;
  6 using System.Web.UI;
  7 using System.Web.UI.WebControls;
  8 using System.Web.UI.WebControls.WebParts;
  9 using System.Web.UI.HtmlControls;
 10 
 11 using System.IO;
 12 using Word = Microsoft.Office.Interop.Word;
 13 using Excel = Microsoft.Office.Interop.Excel;
 14 using PowerPoint = Microsoft.Office.Interop.PowerPoint;
 15 using Microsoft.Office.Core;
 16 
 17 
 18 public class Office2Pdf
 19 {
 20     public Office2Pdf()
 21     {
 22 
 23     }
 24 
 25 
 26     public static bool WordToPDF(string sourcePath)
 27     {
 28         string targetPath = sourcePath.ToLower().Replace(
 29             Path.GetExtension(sourcePath).ToLower(), ".pdf");
 30         bool result = false;
 31         Word.WdExportFormat exportFormat = Word.WdExportFormat.wdExportFormatPDF;
 32         object paramMissing = Type.Missing;
 33         Word.ApplicationClass wordApplication = new Word.ApplicationClass();
 34         Word.Document wordDocument = null;
 35         try
 36         {
 37             object paramSourceDocPath = sourcePath;
 38             string paramExportFilePath = targetPath;
 39             Word.WdExportFormat paramExportFormat = exportFormat;
 40             bool paramOpenAfterExport = false;
 41             Word.WdExportOptimizeFor paramExportOptimizeFor = Word.WdExportOptimizeFor.wdExportOptimizeForPrint;
 42             Word.WdExportRange paramExportRange = Word.WdExportRange.wdExportAllDocument;
 43             int paramStartPage = 0;
 44             int paramEndPage = 0;
 45             Word.WdExportItem paramExportItem = Word.WdExportItem.wdExportDocumentContent;
 46             bool paramIncludeDocProps = true;
 47             bool paramKeepIRM = true;
 48             Word.WdExportCreateBookmarks paramCreateBookmarks = Word.WdExportCreateBookmarks.wdExportCreateWordBookmarks;
 49             bool paramDocStructureTags = true;
 50             bool paramBitmapMissingFonts = true;
 51             bool paramUseISO19005_1 = false;
 52             wordDocument = wordApplication.Documents.Open(
 53                 ref paramSourceDocPath, ref paramMissing, ref paramMissing,
 54                 ref paramMissing, ref paramMissing, ref paramMissing,
 55                 ref paramMissing, ref paramMissing, ref paramMissing,
 56                 ref paramMissing, ref paramMissing, ref paramMissing,
 57                 ref paramMissing, ref paramMissing, ref paramMissing,
 58                 ref paramMissing);
 59             if (wordDocument != null)
 60                 wordDocument.ExportAsFixedFormat(paramExportFilePath,
 61                     paramExportFormat, paramOpenAfterExport,
 62                     paramExportOptimizeFor, paramExportRange, paramStartPage,
 63                     paramEndPage, paramExportItem, paramIncludeDocProps,
 64                     paramKeepIRM, paramCreateBookmarks, paramDocStructureTags,
 65                     paramBitmapMissingFonts, paramUseISO19005_1,
 66                     ref paramMissing);
 67             result = true;
 68         }
 69         catch
 70         {
 71             result = false;
 72         }
 73         finally
 74         {
 75             if (wordDocument != null)
 76             {
 77                 wordDocument.Close(ref paramMissing, ref paramMissing, ref paramMissing);
 78                 wordDocument = null;
 79             }
 80             if (wordApplication != null)
 81             {
 82                 wordApplication.Quit(ref paramMissing, ref paramMissing, ref paramMissing);
 83                 wordApplication = null;
 84             }
 85             GC.Collect();
 86             GC.WaitForPendingFinalizers();
 87             GC.Collect();
 88             GC.WaitForPendingFinalizers();
 89         }
 90         return result;
 91     }
 92 
 93     public static bool ExcelToPDF(string sourcePath)
 94     {
 95         string targetPath = sourcePath.ToLower().Replace(
 96             Path.GetExtension(sourcePath).ToLower(), ".pdf");
 97         bool result = false;
 98         Excel.XlFixedFormatType targetType = Excel.XlFixedFormatType.xlTypePDF;
 99         object missing = Type.Missing;
100         Excel.ApplicationClass application = null;
101         Excel.Workbook workBook = null;
102         try
103         {
104             application = new Excel.ApplicationClass();
105             object target = targetPath;
106             object type = targetType;
107             workBook = application.Workbooks.Open(sourcePath, missing, missing, missing, missing, missing,
108                 missing, missing, missing, missing, missing, missing, missing, missing, missing);
109             workBook.ExportAsFixedFormat(targetType, target, Excel.XlFixedFormatQuality.xlQualityStandard, true, false, missing, missing, missing, missing);
110             result = true;
111         }
112         catch
113         {
114             result = false;
115         }
116         finally
117         {
118             if (workBook != null)
119             {
120                 workBook.Close(true, missing, missing);
121                 workBook = null;
122             }
123             if (application != null)
124             {
125                 application.Quit();
126                 application = null;
127             }
128             GC.Collect();
129             GC.WaitForPendingFinalizers();
130             GC.Collect();
131             GC.WaitForPendingFinalizers();
132         }
133         return result;
134     }
135     ///<summary>        
136     /// 把PowerPoint文件转换成PDF格式文件       
137     ///</summary>        
138     ///<param name="sourcePath">源文件路径</param>     
139     ///<param name="targetPath">目标文件路径</param> 
140     ///<returns>true=转换成功</returns> 
141     public static bool PPTToPDF(string sourcePath)
142     {
143         string targetPath = sourcePath.ToLower().Replace(
144             Path.GetExtension(sourcePath).ToLower(), ".pdf");
145         bool result;
146         PowerPoint.PpSaveAsFileType targetFileType = PowerPoint.PpSaveAsFileType.ppSaveAsPDF;
147         object missing = Type.Missing;
148         PowerPoint.ApplicationClass application = null;
149         PowerPoint.Presentation persentation = null;
150         try
151         {
152             application = new PowerPoint.ApplicationClass();
153             persentation = application.Presentations.Open(sourcePath, MsoTriState.msoTrue, MsoTriState.msoFalse, MsoTriState.msoFalse); 
154             persentation.SaveAs(targetPath, targetFileType, MsoTriState.msoTrue);
155             result = true;
156         }
157         catch
158         {
159             result = false;
160         }
161         finally
162         {
163             if (persentation != null)
164             {
165                 persentation.Close();
166                 persentation = null;
167             }
168             if (application != null)
169             {
170                 application.Quit();
171                 application = null;
172             }
173             GC.Collect();
174             GC.WaitForPendingFinalizers();
175             GC.Collect();
176             GC.WaitForPendingFinalizers();
177         }
178         return result;
179     }
180 }
复制代码

 

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