.net 实现word、excel、ppt、pdf预览功能

先说一下我的思路:word-->pdf-->swf-->显示  我是把word最终用flash 来显示,所以要经过两个步骤来转化

第一步  word转pdf (其他文档一样

1.引用微软的office组件

.net 实现word、excel、ppt、pdf预览功能

如上图,当然你必须先安装office2007或office2010,直接编译会报错

.net 实现word、excel、ppt、pdf预览功能

解决方案是把嵌入互操作类型改为false ,如下图

.net 实现word、excel、ppt、pdf预览功能

using System; using Word = Microsoft.Office.Interop.Word; using Excel = Microsoft.Office.Interop.Excel; using PowerPoint = Microsoft.Office.Interop.PowerPoint; using Microsoft.Office.Core; using System.IO; namespace SZHomeCRM.Common { /// <summary> /// Office2Pdf 将Office文档转化为pdf /// </summary> public class OfficeToPdf { /// <summary> /// Word转换成pdf /// </summary> /// <param>源文件路径</param> /// <param>目标文件路径</param> /// <returns>true=转换成功</returns> public static bool DOCConvertToPDF(string sourcePath,string targetPath) { bool result = false; if (File.Exists(targetPath)) { result = true; return result; } string targetDic=Path.GetDirectoryName(targetPath); if (!Directory.Exists(targetDic)) { Directory.CreateDirectory(targetDic); } Word.WdExportFormat exportFormat = Word.WdExportFormat.wdExportFormatPDF; object paramMissing = Type.Missing; Word.ApplicationClass wordApplication = new Word.ApplicationClass(); Word.Document wordDocument = null; try { object paramSourceDocPath = sourcePath; string paramExportFilePath = targetPath; Word.WdExportFormat paramExportFormat = exportFormat; bool paramOpenAfterExport = false; Word.WdExportOptimizeFor paramExportOptimizeFor = Word.WdExportOptimizeFor.wdExportOptimizeForPrint; Word.WdExportRange paramExportRange = Word.WdExportRange.wdExportAllDocument; int paramStartPage = 0; int paramEndPage = 0; Word.WdExportItem paramExportItem = Word.WdExportItem.wdExportDocumentContent; bool paramIncludeDocProps = true; bool paramKeepIRM = true; Word.WdExportCreateBookmarks paramCreateBookmarks = Word.WdExportCreateBookmarks.wdExportCreateWordBookmarks; bool paramDocStructureTags = true; bool paramBitmapMissingFonts = true; bool paramUseISO19005_1 = false; wordDocument = wordApplication.Documents.Open( ref paramSourceDocPath, ref paramMissing, ref paramMissing, ref paramMissing, ref paramMissing, ref paramMissing, ref paramMissing, ref paramMissing, ref paramMissing, ref paramMissing, ref paramMissing, ref paramMissing, ref paramMissing, ref paramMissing, ref paramMissing, ref paramMissing); if (wordDocument != null) wordDocument.ExportAsFixedFormat(paramExportFilePath, paramExportFormat, paramOpenAfterExport, paramExportOptimizeFor, paramExportRange, paramStartPage, paramEndPage, paramExportItem, paramIncludeDocProps, paramKeepIRM, paramCreateBookmarks, paramDocStructureTags, paramBitmapMissingFonts, paramUseISO19005_1, ref paramMissing); result = true; } catch(Exception ex) { result = false; throw new ApplicationException(ex.Message); } finally { if (wordDocument != null) { wordDocument.Close(ref paramMissing, ref paramMissing, ref paramMissing); wordDocument = null; } if (wordApplication != null) { wordApplication.Quit(ref paramMissing, ref paramMissing, ref paramMissing); wordApplication = null; } GC.Collect(); GC.WaitForPendingFinalizers(); } return result; } /// <summary> /// 把Excel文件转换成PDF格式文件 /// </summary> /// <param>源文件路径</param> /// <param>目标文件路径</param> /// <returns>true=转换成功</returns> public static bool XLSConvertToPDF(string sourcePath, string targetPath) { bool result = false; if (File.Exists(targetPath)) { result = true; return result; } string targetDic = Path.GetDirectoryName(targetPath); if (!Directory.Exists(targetDic)) { Directory.CreateDirectory(targetDic); } Excel.XlFixedFormatType targetType = Excel.XlFixedFormatType.xlTypePDF; object missing = Type.Missing; Excel.ApplicationClass application = null; Excel.Workbook workBook = null; try { application = new Excel.ApplicationClass(); object target = targetPath; object type = targetType; workBook = application.Workbooks.Open(sourcePath, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing); workBook.ExportAsFixedFormat(targetType, target, Excel.XlFixedFormatQuality.xlQualityStandard, true, false, missing, missing, missing, missing); result = true; } catch(Exception ex) { result = false; throw new ApplicationException(ex.Message); } finally { if (workBook != null) { workBook.Close(true, missing, missing); workBook = null; } if (application != null) { application.Quit(); application = null; } GC.Collect(); GC.WaitForPendingFinalizers(); } return result; } ///<summary> /// 把PowerPoint文件转换成PDF格式文件 ///</summary> ///<param>源文件路径</param> ///<param>目标文件路径</param> ///<returns>true=转换成功</returns> public static bool PPTConvertToPDF(string sourcePath, string targetPath) { bool result = false; if (File.Exists(targetPath)) { result = true; return result; } string targetDic = Path.GetDirectoryName(targetPath); if (!Directory.Exists(targetDic)) { Directory.CreateDirectory(targetDic); } PowerPoint.PpSaveAsFileType targetFileType = PowerPoint.PpSaveAsFileType.ppSaveAsPDF; object missing = Type.Missing; PowerPoint.ApplicationClass application = null; PowerPoint.Presentation persentation = null; try { application = new PowerPoint.ApplicationClass(); persentation = application.Presentations.Open(sourcePath, MsoTriState.msoTrue, MsoTriState.msoFalse, MsoTriState.msoFalse); persentation.SaveAs(targetPath, targetFileType, Microsoft.Office.Core.MsoTriState.msoTrue); result = true; } catch(Exception ex) { result = false; throw new ApplicationException(ex.Message); } finally { if (persentation != null) { persentation.Close(); persentation = null; } if (application != null) { application.Quit(); application = null; } GC.Collect(); GC.WaitForPendingFinalizers(); } return result; } } }

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