I am trying to merge two PDF
in this method but after successfully adding, I am unable to convert iTextSharp.text.Document
into byte
array . Please help me.
protected byte[] MergePDFs(byte[] First, byte[] Second, string RptTitle)
{
iTextSharp.text.Document doc = new iTextSharp.text.Document();
iTextSharp.text.pdf.PdfReader reader = null;
int numberOfPages = 0;
int currentPageNumber = 0;
iTextSharp.text.pdf.PdfWriter writer = iTextSharp.text.pdf.PdfWriter.GetInstance(doc, MemStream);
doc.Open();
iTextSharp.text.pdf.PdfContentByte cb = writer.DirectContent;
iTextSharp.text.pdf.PdfImportedPage page = null;
//Third, append all the PDFs--THIS IS THE MAGIC PART
if (First != null)
{
reader = new iTextSharp.text.pdf.PdfReader(First);
numberOfPages = reader.NumberOfPages;
currentPageNumber = 0;
while ((currentPageNumber < numberOfPages))
{
currentPageNumber += 1;
doc.SetPageSize(iTextSharp.text.PageSize.A4);
doc.NewPage();
page = writer.GetImportedPage(reader, currentPageNumber);
//we know that the page would always be in Potrait Format
cb.AddTemplate(page, 1f, 0, 0, 1f, 0, 1);
}
}
if (Second != null)
{
reader = new iTextSharp.text.pdf.PdfReader(Second);
numberOfPages = reader.NumberOfPages;
currentPageNumber = 0;
while ((currentPageNumber < numberOfPages))
{
currentPageNumber += 1;
doc.SetPageSize(iTextSharp.text.PageSize.A4.Rotate());
//.Rotate());
doc.NewPage();
page = writer.GetImportedPage(reader, currentPageNumber);
//we know that the page would always be in LandScape Format
// cb.AddTemplate(page,0, -1f, 1f, 0,0, reader.GetPageSizeWithRotation(currentPageNumber).Height+300);
cb.AddTemplate(page, 1, 0, 0, 1, 0, 0);
}
}
doc.Close();
byte[] cc = StringToByteArray(doc.ToString());
return cc;
I don't know where you people get this examples, they are completely wrong.
First, use PdfCopy
, not PdfWriter
. That way the correct page size and orientation will be correctly imported.
Second, if your MemStream
is a MemoryStream
you would use MemStream.ToArray()
to get the PDF bytes.
PS: Where did that invention of doc.ToString()
come from? It's completely rubbish.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.