// <summary>
// This method combines pdf forms with xml data
// </summary>
// <param name="m_FormName">pdf form file path</param>
// <param name="oData">xml dataset</param>
// <returns>memory stream containing the pdf data</returns>
private MemoryStream GeneratePDF(string m_FormName, XmlDocument oData)
{
PdfReader pdfTemplate;
PdfStamper stamper;
PdfReader tempPDF;
Document doc;
MemoryStream msTemp;
PdfWriter pCopy;
MemoryStream msOutput = new MemoryStream();
pdfTemplate = new PdfReader(m_FormName);
doc = new Document();
pCopy = new PdfCopy(doc, msOutput);
pCopy.AddViewerPreference(PdfName.PICKTRAYBYPDFSIZE, new PdfBoolean(true));
pCopy.AddViewerPreference(PdfName.PRINTSCALING, PdfName.NONE);
doc.Open();
for (int i = 1; i < pdfTemplate.NumberOfPages + 1; i++)
{
msTemp = new MemoryStream();
pdfTemplate = new PdfReader(m_FormName);
stamper = new PdfStamper(pdfTemplate, msTemp);
// map xml values to pdf form controls (element name = control name)
foreach (XmlElement oElem in oData.SelectNodes("/Users/User"))
{
stamper.AcroFields.SetField(oElem.Name, oElem.InnerText);
}
stamper.FormFlattening = true;
stamper.Close();
tempPDF = new PdfReader(msTemp.ToArray());
((PdfCopy)pCopy).AddPage(pCopy.GetImportedPage(tempPDF, i));
pCopy.FreeReader(tempPDF);
}
doc.Close();
return(msOutput);
}
private void MixPDFs(string pathPDF1, string pathPDF2)
{
string NewMixedPDFfilePath = Path.Combine(pathLocalResourcesAndroid, "NewPDF.pdf");
PdfReader pdfReader1 = new PdfReader(pathPDF1);
PdfReader pdfReader2 = new PdfReader(pathPDF2);
//Memorystream usado para writer del nuevo pdf. Todo el contenido añadido al pdf será
//almacenado en el memoryStream al ser asociado en la instancia del PDFWriter
MemoryStream memoryStream = new MemoryStream();
Document newPDF = new Document(PageSize.LETTER);
var writer = new PdfCopy(newPDF, memoryStream);
writer.AddViewerPreference(PdfName.PICKTRAYBYPDFSIZE, PdfBoolean.PDFTRUE);// Añadimos los atributos del nuevo PDF
//Nuevo PDF
newPDF.AddAuthor("Fran");
newPDF.AddTitle("Mezcla de fichero PDF");
newPDF.AddCreator("Fran Cedron");
newPDF.AddCreationDate();
// Abrimos el documento
newPDF.Open();
//PDF1
CopyPDFPages(pdfReader1.NumberOfPages, writer, pdfReader1);
//PDF2
CopyPDFPages(pdfReader1.NumberOfPages, writer, pdfReader2);
newPDF.Close();
writer.Close(); // En el caso que querramos guardarlo en una carpeta
byte[] bytArr = memoryStream.ToArray(); //array de bytes con el contenido del pdf almacenado en el memory stream
using (FileStream fs = File.Create(NewMixedPDFfilePath))
{
fs.Write(bytArr, 0, (int)bytArr.Length);
}
Debug.WriteLine("El fichero existe: creando mezcla fichero");
}
