本文整理匯總了C#中iTextSharp.text.pdf.PdfCopy.Dispose方法的典型用法代碼示例。如果您正苦於以下問題：C# PdfCopy.Dispose方法的具體用法？C# PdfCopy.Dispose怎麽用？C# PdfCopy.Dispose使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類iTextSharp.text.pdf.PdfCopy的用法示例。
在下文中一共展示了PdfCopy.Dispose方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的C#代碼示例。
示例1: ExtractPages
//Thanks for John Atten from code project
//http://www.codeproject.com/Articles/559380/Splitting-and-Merging-PDF-Files-in-Csharp-Using-iT#iTextExampleExtractPageRange
private void ExtractPages(string sourcePdfPath, string outputPdfPath, int[] extractThesePages)
{
PdfReader reader = null;
Document sourceDocument = null;
PdfCopy pdfCopyProvider = null;
PdfImportedPage importedPage = null;
try {
// Intialize a new PdfReader instance with the
// contents of the source Pdf file:
reader = new PdfReader(sourcePdfPath);
// For simplicity, I am assuming all the pages share the same size
// and rotation as the first page:
sourceDocument = new Document(reader.GetPageSizeWithRotation(extractThesePages[0]));
// Initialize an instance of the PdfCopyClass with the source
// document and an output file stream:
pdfCopyProvider = new PdfCopy(sourceDocument, new System.IO.FileStream(outputPdfPath, System.IO.FileMode.Create));
sourceDocument.Open();
// Walk the array and add the page copies to the output file:
foreach (int pageNumber in extractThesePages) {
importedPage = pdfCopyProvider.GetImportedPage(reader, pageNumber);
pdfCopyProvider.AddPage(importedPage);
}
pdfCopyProvider.Dispose();
sourceDocument.Close();
reader.Close();
} catch (Exception ex) {
throw ex;
}
}示例2: SplitWorkerDoWork
private void SplitWorkerDoWork(object sender, DoWorkEventArgs e)
{
object[] args = (object[])e.Argument;
PdfFile pdfFile = (PdfFile)args[0];
PageRangeParser pageRangeParser = (PageRangeParser)args[1];
string destinationPath = (string)args[2];
bool overwriteFile = (bool)args[3];
FileStream outFileStream = null;
Document destinationDoc = null;
PdfCopy pdfCopy = null;
int skippedFiles = 0;
string exportFileName = string.Empty;
string errorMsg = string.Empty;
int exportFileCnt = 0, totalNumberOPages = 0, pageCnt = 0;
EasySplitAndMergePdf.Helper.PageRange[] pageRanges = null;
if (pageRangeParser.TryParse(out pageRanges) != Define.Success)
{
errorMsg = "An error occurred while parsing PDF page ranges" + pageRangeParser.ErrorMsg;
}
else if ((totalNumberOPages = pageRanges.Sum(range => range.PageCount)) < 1)
{
errorMsg = "The number of PDF pages to extract from source file is zero.";
}
else
{
pdfFile.Reader.RemoveUnusedObjects();
while (exportFileCnt < pageRanges.Length && !splitBackgroundWorker.CancellationPending)
{
exportFileName = destinationPath + (exportFileCnt + 1).ToString("D4") + ".pdf";
if (FileHelpers.FileIsAvailable(exportFileName, overwriteFile, out outFileStream, out errorMsg) == Define.Success)
{
destinationDoc = new Document();
pdfCopy = new PdfCopy(destinationDoc, outFileStream);
destinationDoc.Open();
splitBackgroundWorker.ReportProgress(pageCnt * 100 / totalNumberOPages,
string.Format("Creating and processing PDF file: {0}", exportFileName));
if (pageRanges[exportFileCnt].Pages != null)
{
int pageArrayIndex = 0;
while (pageArrayIndex < pageRanges[exportFileCnt].Pages.Length &&
!splitBackgroundWorker.CancellationPending)
{
destinationDoc.SetPageSize(pdfFile.Reader.GetPageSizeWithRotation(pageRanges[exportFileCnt].Pages[pageArrayIndex]));
destinationDoc.NewPage();
pdfCopy.AddPage(pdfCopy.GetImportedPage(pdfFile.Reader, pageRanges[exportFileCnt].Pages[pageArrayIndex]));
splitBackgroundWorker.ReportProgress(++pageCnt * 100 / totalNumberOPages);
pageArrayIndex++;
}
}
else if (pageRanges[exportFileCnt].PageFrom <= pageRanges[exportFileCnt].PageTo)
{
int pageNumber = pageRanges[exportFileCnt].PageFrom;
while (pageNumber <= pageRanges[exportFileCnt].PageTo &&
!splitBackgroundWorker.CancellationPending)
{
destinationDoc.SetPageSize(pdfFile.Reader.GetPageSizeWithRotation(pageNumber));
destinationDoc.NewPage();
pdfCopy.AddPage(pdfCopy.GetImportedPage(pdfFile.Reader, pageNumber));
splitBackgroundWorker.ReportProgress(++pageCnt * 100 / totalNumberOPages);
pageNumber++;
}
}
else if (pageRanges[exportFileCnt].PageFrom > pageRanges[exportFileCnt].PageTo)
{
int pageNumber = pageRanges[exportFileCnt].PageFrom;
while (pageNumber >= pageRanges[exportFileCnt].PageTo &&
!splitBackgroundWorker.CancellationPending)
{
destinationDoc.SetPageSize(pdfFile.Reader.GetPageSizeWithRotation(pageNumber));
destinationDoc.NewPage();
pdfCopy.AddPage(pdfCopy.GetImportedPage(pdfFile.Reader, pageNumber));
splitBackgroundWorker.ReportProgress(++pageCnt * 100 / totalNumberOPages);
pageNumber--;
}
}
//Exception on document.Close() when doc is empty
//if (pages.Count == 0) { throw new IOException("The document has no pages.") };
//When canceling pages.Count could be zero therefore skip cleanup.
if (destinationDoc != null &&
!splitBackgroundWorker.CancellationPending)
{
destinationDoc.Close();
destinationDoc.Dispose();
destinationDoc = null;
}
if (pdfCopy != null &&
!splitBackgroundWorker.CancellationPending)
{
pdfCopy.Close();
pdfCopy.Dispose();
pdfCopy = null;
}
if (outFileStream != null)
//.........這裏部分代碼省略.........