/// <summary>
/// Merge pdf files.
/// </summary>
/// <param name="sourceFiles">PDF files being merged.</param>
/// <returns></returns>
public static byte[] MergeFiles(string htmlDocument, IList <byte[]> sourceFiles, string pdfConverterLicenseKey)
{
PdfConverter pdfConverter = new PdfConverter
{
PdfStandardSubset = PdfStandardSubset.Pdf_A_1b
};
if (String.IsNullOrEmpty(pdfConverterLicenseKey) == false)
{
pdfConverter.LicenseKey = pdfConverterLicenseKey;
}
Winnovative.WnvHtmlConvert.PdfDocument.Document doc = pdfConverter.GetPdfDocumentObjectFromHtmlString(htmlDocument);
try
{
if (sourceFiles != null)
{
foreach (var file in sourceFiles)
{
using (var fileStream = new MemoryStream(file))
{
doc.AppendDocument(new Winnovative.WnvHtmlConvert.PdfDocument.Document(fileStream));
}
}
}
return(doc.Save());
}
finally {
doc.Close();
}
}
/// <summary>
/// Converts the specified html documents to a single pdf file.
/// </summary>
/// <param name="htmlDocuments"></param>
/// <param name="pdfAttachments"></param>
/// <param name="pdfConverterLicenseKey"></param>
/// <returns></returns>
public static byte[] ConvertHtmlToPdf(IEnumerable <string> htmlDocuments, ICollection <PdfAttachment> pdfAttachments, string pdfConverterLicenseKey)
{
//TODO: Add the ability to customize layout and margins.
PdfConverter pdfConverter = new PdfConverter
{
PdfStandardSubset = PdfStandardSubset.Pdf_A_1b
};
if (String.IsNullOrEmpty(pdfConverterLicenseKey) == false)
{
pdfConverter.LicenseKey = pdfConverterLicenseKey;
}
Winnovative.WnvHtmlConvert.PdfDocument.Document doc = null;
try
{
if (htmlDocuments != null)
{
foreach (var htmlDocument in htmlDocuments)
{
if (doc == null)
{
doc = pdfConverter.GetPdfDocumentObjectFromHtmlString(htmlDocument);
}
else
{
doc.AppendDocument(pdfConverter.GetPdfDocumentObjectFromHtmlString(htmlDocument));
}
}
}
if (doc == null)
{
throw new InvalidOperationException("No PDF Document Object was created.");
}
//Use iTextSharp to add all attachments
if (pdfAttachments != null && pdfAttachments.Any())
{
var reader = new PdfReader(doc.Save());
using (var outputPdfStream = new MemoryStream())
{
var stamper = new PdfStamper(reader, outputPdfStream);
foreach (var pdfAttachment in pdfAttachments)
{
stamper.AddFileAttachment(pdfAttachment.Description, pdfAttachment.Data, pdfAttachment.FileName, pdfAttachment.FileDisplayName);
}
stamper.Close();
outputPdfStream.Flush();
return(outputPdfStream.GetBuffer());
}
}
else
{
return(doc.Save());
}
}
finally
{
if (doc != null)
{
doc.Close();
}
}
}
