(no subject)

Hi,

I have a memorystream that contains a pdf document that's been amended. I now want to place this into a pdfwriter to make some other amendments, but i keep getting an error, so i want to check i can do this.

I first load in a PDF and then update some form fields and store that in a memory stream. I then open a PDF writer and pdfreader, the pdfreader points at the memorystream i want to load in and add some more content such as a table etc,

How can i achieve this, also is this the best way of achiveing this?

I started with the following but it errors on the following line:-

PdfReader reader = new PdfReader(mstream);

Here is my code.

string sSource = HttpContext.Current.Server.MapPath("~/" + "report.pdf");

MemoryStream mstream = new MemoryStream();

PdfReader pdfSource = new PdfReader(sSource);

PdfStamper pdfDest = new PdfStamper(pdfSource, mstream);

AcroFields aFields = pdfDest.AcroFields;

pdfDest.Writer.CloseStream = false;

// Update some form fields

pdfDest.FormFlattening = true;

pdfDest.Close();

pdfSource.Close();

// add table to document

Document doc = new Document();

MemoryStream mstream1 = new MemoryStream();

PdfReader reader = new PdfReader(mstream);

PdfWriter writer = PdfWriter.GetInstance(doc, mstream1);

writer.CloseStream = false;

doc.Open();

// Add in existing content

PdfContentByte cb = writer.DirectContent;

pdfImportedPage page = writer.GetImportedPage(reader, 1);

cb.AddTemplate(page, 0, 0);

// Add table

doc.Close();

writer.Close();

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