public static void Merge(List <string> filesContents, string filePath)
{
using (var fileStream = new FileStream(filePath, FileMode.Create))
{
using (var document = new Document(PageSize.A4))
{
using (var copyWriter = new PdfSmartCopy(document, fileStream))
{
document.Open();
copyWriter.RegisterFonts();
foreach (var fileContent in filesContents)
{
using (var pdfReader = new PdfReader(fileContent))
{
copyWriter.AddDocument(pdfReader);
}
}
document.Close();
copyWriter.RegisterProperties();
}
}
}
AddPdfAFlag(filePath);
}
public static byte[] Merge(List <byte[]> filesContents)
{
using (var memoryStream = new MemoryStream())
{
using (var document = new Document(PageSize.A4))
{
using (var copyWriter = new PdfSmartCopy(document, memoryStream))
{
document.Open();
copyWriter.RegisterFonts();
foreach (var fileContent in filesContents)
{
using (var pdfReader = new PdfReader(fileContent))
{
copyWriter.AddDocument(pdfReader);
}
}
document.Close();
copyWriter.RegisterProperties();
}
}
return(AddPdfAFlag(memoryStream.ToArray()));
}
}
public static byte[] DeletePages(byte[] fileContents, int[] pages)
{
using (var memoryStream = new MemoryStream())
{
using (var document = new Document(PageSize.A4))
{
using (var pdfReader = new PdfReader(fileContents))
{
pages = pages
.Where(o => o >= 1 && o <= pdfReader.NumberOfPages)
.Distinct()
.ToArray();
if (pages.Length < pdfReader.NumberOfPages)
{
using (var copyWriter = new PdfSmartCopy(document, memoryStream))
{
document.Open();
copyWriter.RegisterFonts();
var contents = copyWriter.DirectContent;
for (int i = 1; i <= pdfReader.NumberOfPages; i++)
{
if (!pages.Contains(i))
{
var importedPage = copyWriter.GetImportedPage(pdfReader, i);
copyWriter.AddPage(importedPage);
}
}
document.Close();
copyWriter.RegisterProperties();
fileContents = memoryStream.ToArray();
}
}
}
}
}
return(fileContents);
}