转：C#实现office文档转换为PDF或xps的一些方法

代码支持任意office格式

需要安装office 2007 还有一个office2007的插件OfficeSaveAsPDFandXPS

下载地址

http:

//www.microsoft.com/downloads/details.aspx?FamilyId=4D951911-3E7E-4AE6-B059-A2E79ED87041&displaylang=en

这是一个微软官方出的office插件。

安装好之后，打开VS,以VS2005为例

新建windows应用程序项目

添加以下com组件的引用

Microsoft Word 12.0 Object Library

Microsoft PowerPoint 12.0 Object Library

Microsoft Excel 12.0 Object Library

------------------------------------------------------

using

Word = Microsoft.Office.Interop.Word;

using

Excel = Microsoft.Office.Interop.Excel;

using

PowerPoint = Microsoft.Office.Interop.PowerPoint;

using

Microsoft.Office.Core;

我们可以使用一个枚举类型来决定生成文件的类型

Word.WdExportFormat wd = Microsoft.Office.Interop.Word.WdExportFormat.wdExportFormatPDF;

Excel.XlFixedFormatType excelType = Microsoft.Office.Interop.Excel.XlFixedFormatType.xlTypePDF;

PowerPoint.PpSaveAsFileType ppType = Microsoft.Office.Interop.PowerPoint.PpSaveAsFileType.ppSaveAsPDF;

这里Word跟Excel我使用了ExportAsFixedFormat,PowerPoint我使用了SaveAs方法。

对于Word跟PowerPoint效果是一样的，只是SaveAs方法支持的格式更多。

但是Excel似乎不支持SaveAs方法，呵呵

----------------

Word转换方法

private

bool

Convert(

string

sourcePath, 

string

targetPath,
Word.WdExportFormat exportFormat)

{

bool

result;

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

;

}

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();

GC.Collect();

GC.WaitForPendingFinalizers();

}

return

result;

}

Excel转换方法

private

bool

Convert(

string

sourcePath, 

string

targetPath,
XlFixedFormatType targetType)

{

bool

result;

object

missing = Type.Missing;

ApplicationClass application = 

null

;

Workbook workBook = 

null

;

try

{

application = 

new

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, XlFixedFormatQuality.xlQualityStandard, 

true

, 

false

,
missing, missing, missing, missing);

result = 

true

;

}

catch

{

result = 

false

;

}

finally

{

if

(workBook != 

null

)

{

workBook.Close(

true

,
missing, missing);

workBook = 

null

;

}

if

(application
!= 

null

)

{

application.Quit();

application = 

null

;

}

GC.Collect();

GC.WaitForPendingFinalizers();

GC.Collect();

GC.WaitForPendingFinalizers();

}

return

result;

}

PowerPoint转换方法

private

bool

Convert(

string

sourcePath, 

string

targetPath,
PpSaveAsFileType targetFileType)

{

bool

result;

object

missing = Type.Missing;

ApplicationClass application = 

null

;

Presentation persentation = 

null

;

try

{

application = 

new

ApplicationClass();

persentation = application.Presentations.Open(sourcePath, MsoTriState.msoTrue, MsoTriState.msoFalse, MsoTriState.msoFalse);

persentation.SaveAs(targetPath, targetFileType, Microsoft.Office.Core.MsoTriState.msoTrue);

result = 

true

;

}

catch

{

result = 

false

;

}

finally

{

if

(persentation
!= 

null

)

{

persentation.Close();

persentation = 

null

;

}

if

(application != 

null

)

{

application.Quit();

application = 

null

;

}

GC.Collect();

GC.WaitForPendingFinalizers();

GC.Collect();

GC.WaitForPendingFinalizers();

}

return

result;

}

如果是word文档或者Excel文档想要转换xps格式，我们还可以有一种方法，那就是利用xps虚拟打印机实现。

安装了.NetFrameWork3.5之后，默认会在系统中安装XPS虚拟打印机，我们将其设置为默认打印机。

Microsoft XPS Document Writer

word文档打印为xps

public

void

PrintWord(

string

wordfile)

{

oWord.ApplicationClass word = 

new

oWord.ApplicationClass();

Type wordType = word.GetType();

//打开WORD文档

oWord.Documents docs = word.Documents;

Type docsType = docs.GetType();

object

objDocName = wordfile;

oWord.Document doc = (oWord.Document)docsType.InvokeMember(

"Open"

,
System.Reflection.BindingFlags.InvokeMethod, 

null

, docs, 

new

Object[]
{ objDocName, 

true

, 

true

});

//打印输出到指定文件

//可以使用 doc.PrintOut();方法,次方法调用中的参数设置较繁琐,建议使用 Type.InvokeMember 来调用时可以不用将PrintOut的参数设置全,只设置4个主要参数

Type docType = doc.GetType();

object

printFileName = wordfile + 

".xps"

;

docType.InvokeMember(

"PrintOut"

,
System.Reflection.BindingFlags.InvokeMethod, 

null

, doc, 

new

object

[]
{ 

false

, 

false

,
oWord.WdPrintOutRange.wdPrintAllDocument, printFileName });

//退出WORD

wordType.InvokeMember(

"Quit"

,
System.Reflection.BindingFlags.InvokeMethod, 

null

, word, 

null

);

}

Excel利用虚拟打印机转换为xps

public

void

PrintExcel(

string

execlfile)

{

Excel.ApplicationClass eapp = 

new

Excel.ApplicationClass();

Type eType = eapp.GetType();

Excel.Workbooks Ewb = eapp.Workbooks;

Type elType = Ewb.GetType();

object

objelName = execlfile;

Excel.Workbook ebook = (Excel.Workbook)elType.InvokeMember(

"Open"

,
System.Reflection.BindingFlags.InvokeMethod, 

null

, Ewb, 

new

Object[]
{ objelName, 

true

, 

true

});

object

printFileName
= execlfile + 

".xps"

;

Object oMissing = System.Reflection.Missing.Value;

ebook.PrintOut(oMissing, oMissing, oMissing, oMissing, oMissing, 

true

,
oMissing, printFileName);

eType.InvokeMember(

"Quit"

,
System.Reflection.BindingFlags.InvokeMethod, 

null

, eapp, 

null

);

}

，同样，如果系统安装了PDF虚拟打印机，如5D PDF之类的，我们也可以将其设置为默认打印机以达到转换为PDF格式的目的

我们可以将这些方法放在windows service里面，实现文档的后台转换。