public Image GetImage(int pageNum)
{
try
{
return(TiffImage.GetTiffImage(ram, pageNum));
}
catch (IOException ex)
{
// System.IO.IOException: Compression JPEG is only supported with a single strip. This image has 30 strips.
if (ex.Message.StartsWith("Compression JPEG is only supported with a single strip"))
{
return(new WindowsBitmapReader(new NoclosePassthru(si)).GetImage(pageNum));
}
throw;
}
catch (ArgumentException ex)
{
// System.ArgumentException: Extra samples are not supported.
if (ex.Message.StartsWith("Extra samples are not supported"))
{
return(new WindowsBitmapReader(new NoclosePassthru(si)).GetImage(pageNum));
}
throw;
}
}
//this function is capable of taking multiple tiff images from a directory
//and processing each tiff frame by frame
private void AddTiff(Document pdfDocument, iTextSharp.text.Rectangle pdfPageSize, String tiffPath)
{
RandomAccessFileOrArray ra = new RandomAccessFileOrArray(tiffPath);
int pageCount = TiffImage.GetNumberOfPages(ra);
for (int i = 1; i <= pageCount; i++)
{
iTextSharp.text.Image img = TiffImage.GetTiffImage(ra, i);
if (img.ScaledWidth > pdfPageSize.Width || img.ScaledHeight > pdfPageSize.Height)
{
img.SetDpi(2, 2);
if (img.DpiX != 0 && img.DpiY != 0 && img.DpiX != img.DpiY)
{
float percentX = (pdfPageSize.Width * 100) / img.ScaledWidth;
float percentY = (pdfPageSize.Height * 100) / img.ScaledHeight;
img.ScalePercent(percentX, percentY);
img.WidthPercentage = 0;
}
else
{
img.ScaleToFit(pdfPageSize.Width, pdfPageSize.Height);
}
}
iTextSharp.text.Rectangle pageRect = new iTextSharp.text.Rectangle(0, 0, img.ScaledWidth, img.ScaledHeight);
pdfDocument.SetPageSize(pageRect);
pdfDocument.SetMargins(0, 0, 0, 0);
pdfDocument.NewPage();
pdfDocument.Add(img);
}
}
// ---------------------------------------------------------------------------
public void AddTif(Document document, String path)
{
RandomAccessFileOrArray ra = new RandomAccessFileOrArray(path);
int n = TiffImage.GetNumberOfPages(ra);
Image img;
for (int i = 1; i <= n; i++)
{
img = TiffImage.GetTiffImage(ra, i);
img.ScaleToFit(523, 350);
document.Add(img);
}
}
internal static PdfReader CreatePdfReaderFromTiff(byte[] sourceBytes, Rectangle pageSize, Margins margins)
{
using (var document = new Document())
{
using (var stream = new MemoryStream())
{
using (var writer = PdfWriter.GetInstance(document, stream))
{
var ra = new RandomAccessFileOrArray(sourceBytes);
int numberOfPages = TiffImage.GetNumberOfPages(ra);
for (int i = 1; i <= numberOfPages; i++)
{
var image = TiffImage.GetTiffImage(ra, i);
Rectangle currentPageSize = pageSize == null ? new Rectangle(image.ScaledWidth + margins.Left + margins.Right + 1, image.ScaledHeight + margins.Top + margins.Bottom + 1) : pageSize;
document.SetPageSize(currentPageSize);
document.SetMargins(margins.Left, margins.Right, margins.Top, margins.Bottom);
if (i == 1)
{
document.Open();
}
else
{
document.NewPage();
}
if (pageSize != null)
{
float width = pageSize.Width - (margins.Left + margins.Right + 1);
float height = pageSize.Height - (margins.Top + margins.Bottom + 1);
if (width <= 0 || height <= 0)
{
throw new IOException("Margin is too big.");
}
image.ScaleToFit(width, height);
}
document.Add(image);
}
document.Close();
ra.Close();
}
var pdfArray = stream.ToArray();
return(new PdfReader(pdfArray));
}
}
}
