public static DocumentWrapper LoadFrom(this DocumentWrapper source, IPdfContent pdf, PdfTransformer tx)
{
PdfReader.unethicalreading = tx.UnethicalReading;
PdfReader reader = null;
PdfWriter writer = null;
MemoryStream ms = null;
try
{
reader = pdf.ToPdfContent().GetReader();
source.IsEncrypted = reader.IsEncrypted();
using (ms = new MemoryStream())
using (writer = PdfWriter.GetInstance(source, ms))
{
if (tx.PdfA)
{
writer.SetPdfVersion(PdfWriter.PDF_VERSION_1_7);
writer.PDFXConformance = PdfWriter.PDFX1A2001;
writer.CreateXmpMetadata();
}
source.Open();
foreach (var p in reader.PageNumbers())
{
PdfImportedPage sourcePage = null;
try
{
sourcePage = writer.GetImportedPage(reader, p);
}
catch (ArgumentException)
{
PdfReader.unethicalreading = true;
sourcePage = writer.GetImportedPage(reader, p);
PdfReader.unethicalreading = tx.UnethicalReading;
}
var sourcePageSize = reader.GetPageSizeWithRotation(p);
var template = tx;
template.SetOrigin(sourcePage, sourcePageSize);
if (reader.HasAnnotations(p))
{
Debug.WriteLine("Trovate annotazioni a pagina {0}, lo scaling del contenuto verrà ignorato.", p);
template.ClearScaling();
}
source.NewPage(template.DestinationPageSize);
writer.DirectContent.TransformTo(template);
}
source.Close();
source.Content = ms.ToDeepCopyArray();
return(source);
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
Debug.WriteLine(ex.StackTrace);
throw ex;
}
finally
{
source.CloseQuietly();
ms.CloseQuietly();
writer.CloseQuietly();
reader.CloseQuietly();
}
}
