C#实现MS-Office文档转Pdf（Word、Execel、PowerPoint、Visio、Project）

using System;
using Microsoft.Office.Core;

namespace Office
{
class Util
{
private Util() { }
/// <summary>
/// 把Word文件转换成为PDF格式文件
/// </summary>
/// <param name="sourcePath">源文件路径</param>
/// <param name="targetPath">目标文件路径</param>
/// <returns>true=转换成功</returns>
public static bool WordToPDF(string sourcePath, string targetPath)
{
bool result = false;
Microsoft.Office.Interop.Word.WdExportFormat exportFormat = Microsoft.Office.Interop.Word.WdExportFormat.wdExportFormatPDF;
Microsoft.Office.Interop.Word.ApplicationClass application = null;

Microsoft.Office.Interop.Word.Document document = null;
try
{
application = new Microsoft.Office.Interop.Word.ApplicationClass();
application.Visible = false;
document = application.Documents.Open(sourcePath);
document.SaveAs2();
document.ExportAsFixedFormat(targetPath, exportFormat);
result = true;
}
catch (Exception e)
{
Console.WriteLine(e.Message);
result = false;
}
finally
{
if (document != null)
{
document.Close();
document = null;
}
if (application != null)
{
application.Quit();
application = null;
}
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
GC.WaitForPendingFinalizers();
}
return result;
}

/// <summary>
/// 把Microsoft.Office.Interop.Excel文件转换成PDF格式文件
/// </summary>
/// <param name="sourcePath">源文件路径</param>
/// <param name="targetPath">目标文件路径</param>
/// <returns>true=转换成功</returns>
public static bool ExcelToPDF(string sourcePath, string targetPath)
{
bool result = false;
Microsoft.Office.Interop.Excel.XlFixedFormatType targetType = Microsoft.Office.Interop.Excel.XlFixedFormatType.xlTypePDF;
object missing = Type.Missing;
Microsoft.Office.Interop.Excel.ApplicationClass application = null;
Microsoft.Office.Interop.Excel.Workbook workBook = null;
try
{
application = new Microsoft.Office.Interop.Excel.ApplicationClass();
application.Visible = false;
workBook = application.Workbooks.Open(sourcePath);
workBook.SaveAs();
workBook.ExportAsFixedFormat(targetType, targetPath);
result = true;
}
catch (Exception e)
{
Console.WriteLine(e.Message);
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;
}
/// <summary>
/// 把PowerPoint文件转换成PDF格式文件
/// </summary>
/// <param name="sourcePath">源文件路径</param>
/// <param name="targetPath">目标文件路径</param>
/// <returns>true=转换成功</returns>
public static bool PowerPointToPDF(string sourcePath, string targetPath)
{
bool result;
Microsoft.Office.Interop.PowerPoint.PpSaveAsFileType targetFileType = Microsoft.Office.Interop.PowerPoint.PpSaveAsFileType.ppSaveAsPDF;
object missing = Type.Missing;
Microsoft.Office.Interop.PowerPoint.ApplicationClass application = null;
Microsoft.Office.Interop.PowerPoint.Presentation persentation = null;
try
{
application = new Microsoft.Office.Interop.PowerPoint.ApplicationClass();
//application.Visible = MsoTriState.msoFalse;
persentation = application.Presentations.Open(sourcePath, MsoTriState.msoTrue, MsoTriState.msoFalse, MsoTriState.msoFalse);
persentation.SaveAs(targetPath, targetFileType, Microsoft.Office.Core.MsoTriState.msoTrue);

result = true;
}
catch(Exception e)
{
Console.WriteLine(e.Message);
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;
}

/// <summary>
/// 把Visio文件转换成PDF格式文件
/// </summary>
/// <param name="sourcePath">源文件路径</param>
/// <param name="targetPath">目标文件路径</param>
/// <returns>true=转换成功</returns>
public static bool VisioToPDF(string sourcePath, string targetPath)
{
bool result;
Microsoft.Office.Interop.Visio.VisFixedFormatTypes targetType = Microsoft.Office.Interop.Visio.VisFixedFormatTypes.visFixedFormatPDF;
object missing = Type.Missing;
Microsoft.Office.Interop.Visio.ApplicationClass application = null;
Microsoft.Office.Interop.Visio.Document document = null;
try
{
application = new Microsoft.Office.Interop.Visio.ApplicationClass();
application.Visible = false;
document = application.Documents.Open(sourcePath);
document.Save();
document.ExportAsFixedFormat(targetType, targetPath, Microsoft.Office.Interop.Visio.VisDocExIntent.visDocExIntentScreen, Microsoft.Office.Interop.Visio.VisPrintOutRange.visPrintAll);
result = true;
}
catch (Exception e)
{
Console.WriteLine(e.Message);
result = false;
}
finally
{
if (application != null)
{
application.Quit();
application = null;
}
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
GC.WaitForPendingFinalizers();
}
return result;
}