static void Main(string[] args)
{
using (var stream = new MemoryStream())
{
// Generate RTF (using MigraDoc)
var migraDoc = new MigraDoc.DocumentObjectModel.Document();
var section = migraDoc.AddSection();
var paragraph = section.AddParagraph();
paragraph.AddFormattedText("Hello World!", TextFormat.Bold);
var rtfDocumentRenderer = new RtfDocumentRenderer();
rtfDocumentRenderer.Render(migraDoc, stream, false, null);
// Convert RTF to DOCX (using Spire.Doc)
var spireDoc = new Spire.Doc.Document();
spireDoc.LoadFromStream(stream, FileFormat.Auto);
spireDoc.SaveToFile("D:\\example.docx", FileFormat.Docx);
}
}
/****** 程式處理邏輯 *****
*
* 1. 取得 docx 串流資訊，將其轉換為實體暫存檔案
* 2. 透過 Microsoft.Office.Interop.Word 套件將方才產生的 docx 暫存檔轉換為 PDF 實體檔案
* 3. 將 PDF 實體檔案轉換成串流資訊
* 4. 回傳前，將產生的暫存檔案 (docx, pdf) 移除
* 5. 回傳 PDF 串流資訊，完成
*
************************/
/// <summary>
/// 將 Word 串流轉換為 PDF 串流 (使用 Microsoft.Office.Interop.Word 套件)
/// </summary>
/// <param name="WordFileStreaming">Word 串流內容</param>
/// <returns>PDF串流</returns>
public static byte[] ConvertToPdf_MicrosoftOfficeInteropWord(byte[] WordFileStreaming)
{
bool result = true;
string msg = "";
MemoryStream ms = new MemoryStream();
FileStream fs = null;
//利用 Spire.Doc 將 Word 串流資訊轉換為實體暫存檔案
Spire.Doc.Document spiredoc = new Spire.Doc.Document();
Stream tmpdoc = new MemoryStream(WordFileStreaming);
spiredoc.LoadFromStream(tmpdoc, FileFormat.Docx);
string tmpDocDir = HttpContext.Current.Server.MapPath("~/TmpDocs");
string tmpDocPath = Path.Combine(tmpDocDir, DateTime.Now.ToString("yyyyMMddHHmmss") + ".docx");
if (!Directory.Exists(tmpDocDir))
{
Directory.CreateDirectory(tmpDocDir);
}
spiredoc.SaveToFile(tmpDocPath, FileFormat.Docx);
//轉換成 PDF
string tmpPdfFilePath = Path.Combine(tmpDocDir, DateTime.Now.ToString("yyyyMMddHHmmss") + ".pdf");
if (File.Exists(tmpDocPath))
{
var appWord = new Application();
if (appWord.Documents != null)
{
var wordDocument = appWord.Documents.Open(tmpDocPath);
if (wordDocument != null)
{
try
{
//將 Word 檔轉存成 PDF 實體檔案
wordDocument.ExportAsFixedFormat(tmpPdfFilePath, WdExportFormat.wdExportFormatPDF);
//將轉換後的 PDF 實體檔案串流化
fs = new FileStream(tmpPdfFilePath, FileMode.Open, FileAccess.Read, FileShare.Read);
wordDocument.Close();
//將 FileStream 轉存給 MemoryStream
fs.CopyTo(ms);
}
catch (Exception ex) { result = false; msg = ex.Message; }
finally
{
fs.Dispose();
//刪除產生的暫存 PDF 檔
File.Delete(tmpPdfFilePath);
}
}
}
appWord.Quit();
//刪除產生的暫存 Word 檔
File.Delete(tmpDocPath);
}
if (result)
{
return(ms.ToArray());
}
else
{
return(null);
}
}
/// <summary>
/// 將 Word 串流轉換為 PDF 串流(使用 Aspose.Words 套件)
/// </summary>
/// <param name="WordFileStreaming">Word 串流內容</param>
/// <returns>PDF串流</returns>
public static byte[] ConvertToPdf_AsposeWords(byte[] WordFileStreaming)
{
bool result = true;
string msg = "";
MemoryStream ms = new MemoryStream();
FileStream fs = null;
//利用 Spire.Doc 將 Word 串流資訊轉換為實體暫存檔案
Spire.Doc.Document spiredoc = new Spire.Doc.Document();
Stream tmpdoc = new MemoryStream(WordFileStreaming);
spiredoc.LoadFromStream(tmpdoc, FileFormat.Docx);
string tmpDocDir = HttpContext.Current.Server.MapPath("~/TmpDocs");
string tmpDocPath = Path.Combine(tmpDocDir, DateTime.Now.ToString("yyyyMMddHHmmss") + ".docx");
if (!Directory.Exists(tmpDocDir))
{
Directory.CreateDirectory(tmpDocDir);
}
spiredoc.SaveToFile(tmpDocPath, FileFormat.Docx);
//轉換成 PDF
string tmpPdfFilePath = Path.Combine(tmpDocDir, DateTime.Now.ToString("yyyyMMddHHmmss") + ".pdf");
if (File.Exists(tmpDocPath))
{
try
{
//轉換過程
Aspose.Words.Document srcDoc = new Aspose.Words.Document(tmpDocPath);
// Save the document in PDF format.
srcDoc.Save(tmpPdfFilePath, SaveFormat.Pdf);
//將轉換後的 PDF 實體檔案串流化
fs = new FileStream(tmpPdfFilePath, FileMode.Open, FileAccess.Read, FileShare.Read);
//將 FileStream 轉存給 MemoryStream
fs.CopyTo(ms);
}
catch (Exception ex)
{
result = false;
msg = ex.Message;
}
finally
{
fs.Dispose();
//刪除產生的暫存 PDF 檔
File.Delete(tmpPdfFilePath);
}
//刪除產生的暫存 Word 檔
File.Delete(tmpDocPath);
}
// 回傳串流資訊
if (result)
{
return(ms.ToArray());
}
else
{
return(null);
}
}
