public void AddSheet(string pdfFile, string addSheetFile, int numberInSheetFile, int numberInPdfFile, string destFile)
{
var sheet = new PdfReader(addSheetFile);
var pdf = new PdfReader(pdfFile);
var doc = new Document();
var copier = new PdfCopy(doc, new FileStream(destFile, FileMode.Create));
doc.Open();
var pdfLabels = PdfPageLabels.GetPageLabels(pdf);
if (pdfLabels?.Length != pdf.NumberOfPages)
{
pdfLabels = null;
}
var sheetLabel = PdfPageLabels.GetPageLabels(sheet);
if (sheetLabel?.Length != sheet.NumberOfPages)
{
sheetLabel = null;
}
var labels = new PdfPageLabels();
for (var i = 1; i < numberInPdfFile; i++)
{
var page = copier.GetImportedPage(pdf, i);
copier.AddPage(page);
if (pdfLabels != null)
{
var label = pdfLabels[i - 1];
labels.AddPageLabel(i, PdfPageLabels.EMPTY, label);
}
}
copier.AddPage(copier.GetImportedPage(sheet, numberInSheetFile));
if (sheetLabel != null)
{
labels.AddPageLabel(numberInPdfFile, PdfPageLabels.EMPTY, sheetLabel[numberInSheetFile - 1]);
}
else
{
labels.AddPageLabel(numberInPdfFile, PdfPageLabels.EMPTY, "бланк");
}
for (var i = numberInPdfFile; i < pdf.NumberOfPages + 1; i++)
{
copier.AddPage(copier.GetImportedPage(pdf, i));
if (pdfLabels != null)
{
var label = pdfLabels[i - 1];
labels.AddPageLabel(i + 1, PdfPageLabels.EMPTY, label);
}
}
copier.PageLabels = labels;
doc.Close();
copier.Close();
pdf.Close();
sheet.Close();
}
// ---------------------------------------------------------------------------
/**
* Reads the page labels from an existing PDF
* @param src the existing PDF
*/
public string ListPageLabels(byte[] src)
{
StringBuilder sb = new StringBuilder();
String[] labels = PdfPageLabels.GetPageLabels(new PdfReader(src));
for (int i = 0; i < labels.Length; i++)
{
sb.Append(labels[i]);
sb.AppendLine();
}
return(sb.ToString());
}