//Pre-Condition:
// string destinationFile, the file which will be saved for output after merger
// string[] sourceFiles, a string array of the location of the files to be merged
// string[] pageName, a string array of the bookmark names for each pdf file to be merged
//Post-Condition:
// the seperate pdf files are merged with bookmarks added then saved to the destinationFile
public static void MergeFiles(string destinationFile, string[] sourceFiles, string[] pageName)
{
int TotalPages = 0;//总页码
try
{
int f = 0;
PdfReader reader = new PdfReader(sourceFiles[f]);
int n = reader.NumberOfPages;
TotalPages += n;
Document document = new Document(reader.getPageSizeWithRotation(1));
PdfWriter writer = PdfWriter.getInstance(document, new FileStream(destinationFile, FileMode.Create));
//每列显示一页
//显示大纲
//页面大小适合窗口
writer.setViewerPreferences(PdfWriter.PageLayoutOneColumn | PdfWriter.PageModeUseOutlines | PdfWriter.FitWindow);
document.Open();
PdfContentByte cb = writer.DirectContent;
PdfImportedPage page;
int rotation;
int pdfPageName = 0;
bool pdfNewPageFlag = true;
while (f < sourceFiles.Length)
{
int i = 0;
while (i < n)//n为当前导入文件的页次
{
i++;
//取得页面方向
document.setPageSize(reader.getPageSizeWithRotation(i));
//新建一页
document.newPage();
if (pdfNewPageFlag == true)
{
//建立转向标记
PdfAction a = PdfAction.gotoLocalPage(TotalPages, new PdfDestination(PdfDestination.FITH), writer);
//建立在纲
PdfOutline outLine = new PdfOutline(writer.DirectContent.RootOutline, a, pageName[f]);
pdfNewPageFlag = false;
pdfPageName++;
}
page = writer.getImportedPage(reader, i);
rotation = reader.getPageRotation(i);
if (rotation == 90 || rotation == 270)
{
cb.addTemplate(page, 0, -1f, 1f, 0, 0, reader.getPageSizeWithRotation(i).Height);
}
else
{
cb.addTemplate(page, 1f, 0, 0, 1f, 0, 0);
}
}
f++;
if (f < sourceFiles.Length)
{
reader = new PdfReader(sourceFiles[f]);
n = reader.NumberOfPages;
TotalPages += n;//累计页码
pdfNewPageFlag = true;
}
}
document.Close();
}
catch
{
//Console.Error.WriteLine(e.Message);
//Console.Error.WriteLine(e.StackTrace);
}
}
//合并文件
#region
public static MemoryStream MergeFiles(ArrayList sourceFiles, ArrayList pageName)
{
int f = 0;
//生成数据流初始化
MemoryStream ms = new MemoryStream();
PdfReader reader = new PdfReader(sourceFiles[f].ToString());
int n = reader.NumberOfPages;
Document document = new Document(reader.getPageSizeWithRotation(1));
//打开 Document 生成 PDF
PdfWriter writer = PdfWriter.getInstance(document, ms);
//每列显示一页,显示大纲,页面大小适合窗口
writer.setViewerPreferences(PdfWriter.PageLayoutOneColumn | PdfWriter.PageModeUseOutlines | PdfWriter.FitWindow);
try
{
#region
document.Open();
PdfContentByte cb = writer.DirectContent;
PdfImportedPage page;
int rotation;
int curPage = 1;//页码
while (f < sourceFiles.Count)
{
////建立转向标记
//PdfAction a = PdfAction.gotoLocalPage(curPage, new PdfDestination(PdfDestination.FITH), writer);
//PdfOutline outLine = new PdfOutline(writer.DirectContent.RootOutline, a, pageName[f].ToString());
string bookmark = pageName[f].ToString();
if (f == 0)
{
//建立转向标记
PdfAction a = PdfAction.gotoLocalPage(curPage, new PdfDestination(PdfDestination.FITH), writer);
PdfOutline outLine = new PdfOutline(writer.DirectContent.RootOutline, a, bookmark);
}
else
{
int index = sourceFiles[f - 1].ToString().LastIndexOf('\\');
string lastfileName = sourceFiles[f - 1].ToString().Substring(index + 1, 10);
string fileName = sourceFiles[f].ToString().Substring(index + 1, 10);
if (fileName.Substring(0, 2) == "AA")
{
if (lastfileName != fileName)
{
//建立转向标记
PdfAction a = PdfAction.gotoLocalPage(curPage, new PdfDestination(PdfDestination.FITH), writer);
PdfOutline outLine = new PdfOutline(writer.DirectContent.RootOutline, a, bookmark);
}
}
else
{
//建立转向标记
PdfAction a = PdfAction.gotoLocalPage(curPage, new PdfDestination(PdfDestination.FITH), writer);
PdfOutline outLine = new PdfOutline(writer.DirectContent.RootOutline, a, bookmark);
}
}
int i = 0;
while (i < n)//n为当前导入文件的页数
{
i++;
//取得页面方向
document.setPageSize(reader.getPageSizeWithRotation(i));
//新建一页
document.newPage();
#region 已注释
//if (i == 1)
//{
// //建立转向标记
// PdfAction a = PdfAction.gotoLocalPage(curPage, new PdfDestination(PdfDestination.FITH), writer);
// PdfOutline outLine = new PdfOutline(writer.DirectContent.RootOutline, a, pageName[f].ToString());
//}
//string bookmark = pageName[f].ToString();
//if (f == 0)
//{
// //建立转向标记
// PdfAction a = PdfAction.gotoLocalPage(curPage, new PdfDestination(PdfDestination.FITH), writer);
// PdfOutline outLine = new PdfOutline(writer.DirectContent.RootOutline, a, bookmark);
//}
//else
//{
// int index = sourceFiles[f - 1].ToString().LastIndexOf('\\');
// string lastfileName = sourceFiles[f - 1].ToString().Substring(index + 1, 10);
// string fileName = sourceFiles[f].ToString().Substring(index + 1, 10);
// if (fileName.Substring(0, 2) == "AA")
// {
// if (lastfileName != fileName)
// {
// //建立转向标记
// PdfAction a = PdfAction.gotoLocalPage(curPage, new PdfDestination(PdfDestination.FITH), writer);
// PdfOutline outLine = new PdfOutline(writer.DirectContent.RootOutline, a, bookmark);
// }
// }
// else
// {
// //建立转向标记
// PdfAction a = PdfAction.gotoLocalPage(curPage, new PdfDestination(PdfDestination.FITH), writer);
// PdfOutline outLine = new PdfOutline(writer.DirectContent.RootOutline, a, bookmark);
// }
//}
#endregion
page = writer.getImportedPage(reader, i);
rotation = reader.getPageRotation(i);
if (rotation == 90 || rotation == 270)
{
cb.addTemplate(page, 0, -1f, 1f, 0, 0, reader.getPageSizeWithRotation(i).Height);
}
else
{
cb.addTemplate(page, 1f, 0, 0, 1f, 0, 0);
}
curPage++;
}
f++; //下一份文件
if (f < sourceFiles.Count)
{
string test = sourceFiles[f].ToString();
if (System.IO.File.Exists(sourceFiles[f].ToString()))
{
try
{
reader = new PdfReader(sourceFiles[f].ToString());
n = reader.NumberOfPages;
}
catch { }
}
}
}
#endregion
}
catch (Exception ex)
{
System.Windows.Forms.MessageBox.Show(ex.Message);
}
finally
{
document.Close();
}
return(ms);
}
