iTextSharp正在生成损坏的PDF
||
下面的代码片段返回了损坏的PDF文档，但是，如果我返回mergedDocument，它将始终返回有效的PDF。 mergedDocument基于我使用Word创建的PDF文件，而完整的文档完全以编程方式生成。代码“作品”不会引发任何异常。为什么iTextSharp创建损坏的PDF？
byte[] completedDocument = null;
using (MemoryStream streamCompleted = new MemoryStream())
{
using (Document document = new Document())
{
PdfCopy copy = new PdfCopy(document, streamCompleted);
document.Open();
copy.Open();
foreach (var item in eventItems)
{
byte[] mergedDocument = null;
PdfReader reader = new PdfReader(pdfTemplates[item.DataTokens[NotifyTokenType.OrganisationID]]);
using (MemoryStream streamTemplate = new MemoryStream())
{
using (PdfStamper stamper = new PdfStamper(reader, streamTemplate))
{
foreach (var token in item.DataTokens)
{
if (stamper.AcroFields.Fields.Any(fld => fld.Key == token.Key.ToString()))
{
stamper.AcroFields.SetField(token.Key.ToString(), token.Value);
}
}
stamper.FormFlattening = true;
stamper.Writer.CloseStream = false;
}
mergedDocument = new byte[streamTemplate.Length];
streamTemplate.Position = 0;
streamTemplate.Read(mergedDocument, 0, (int)streamTemplate.Length);
}
reader = new PdfReader(mergedDocument);
for (int i = 1; i <= reader.NumberOfPages; i++)
{
document.SetPageSize(PageSize.A4);
copy.AddPage(copy.GetImportedPage(reader, i));
}
}
completedDocument = new byte[streamCompleted.Length];
streamCompleted.Position = 0;
streamCompleted.Read(completedDocument, 0, (int)streamCompleted.Length);
}
}
return completedDocument;
没有找到相关结果
已邀请:
2 个回复
脖呐
和对象才能刷新PDF写入缓冲区。但是，这在尝试将流读入数组时会引起一些问题。解决方法是使用仍适用于封闭流的的ѭ3still方法。我所做的更改对此有意见。byte[] completedDocument = null; using (MemoryStream streamCompleted = new MemoryStream()) { using (Document document = new Document()) { PdfCopy copy = new PdfCopy(document, streamCompleted); document.Open(); copy.Open(); foreach (var item in eventItems) { byte[] mergedDocument = null; PdfReader reader = new PdfReader(pdfTemplates[item.DataTokens[NotifyTokenType.OrganisationID]]); using (MemoryStream streamTemplate = new MemoryStream()) { using (PdfStamper stamper = new PdfStamper(reader, streamTemplate)) { foreach (var token in item.DataTokens) { if (stamper.AcroFields.Fields.Any(fld => fld.Key == token.Key.ToString())) { stamper.AcroFields.SetField(token.Key.ToString(), token.Value); } } stamper.FormFlattening = true; stamper.Writer.CloseStream = false; } //Copy the stream\'s bytes mergedDocument = streamTemplate.ToArray(); } reader = new PdfReader(mergedDocument); for (int i = 1; i <= reader.NumberOfPages; i++) { document.SetPageSize(PageSize.A4); copy.AddPage(copy.GetImportedPage(reader, i)); } //Close the document and the copy document.Close(); copy.Close(); } //ToArray() can operate on closed streams completedDocument = streamCompleted.ToArray(); } } return completedDocument;澳绍能