On 22/08/2013 21:44, Vahid Nasiri wrote:
Hello,
The following sample does not work with the latest iTextSharp.
There are at least two errors in your code, so I didn't read on.
Error 1 (not fatal): you're creating a new Image instance every time
OnStartPage() is triggered.
This means that you add the same bytes over and over to your document,
leading to a bloated file.
Error 2 (unforgivable): as documented, the Document object passed to the
OnStartPage() method is NOT the same object as the Document object used
in the rest of your code. Instead, it's an internal PdfDocument instance
that should be used for read-only purposes only. In other words:
pdfDoc.Add(table); is forbidden. It shouldn't work.
I didn't read on after this second error. You code needs to be rewritten
before one can comment any further on this topic.
The produced PDF file has not the related XObjects of the image file.
So the Adobe reader is not able to show the image.
But this code works fine with iTextSharp 5.4.1.
I found a simple solution for that: I have to move the lines after the
`pdfDoc.Open` before it, to make it work.
using System.Diagnostics;
using System.IO;
using iTextSharp.text;
using iTextSharp.text.pdf;
namespace OptimizeImageSizes
{
public class PageEvents : PdfPageEventHelper
{
public override void OnStartPage(PdfWriter writer, Document pdfDoc)
{
base.OnStartPage(writer, pdfDoc);
var table = new PdfPTable(1);
var img = Image.GetInstance("myImage.png");
var cell = new PdfPCell(img, false);
table.AddCell(cell);
pdfDoc.Add(table);
}
}
public static class CrashWith534
{
public static void Test()
{
using (var pdfDoc = new Document(PageSize.A4))
{
var pdfWriter = PdfWriter.GetInstance(pdfDoc, new
FileStream("Test.pdf", FileMode.Create));
pdfWriter.PageEvent = new PageEvents();
pdfDoc.Open();
pdfWriter.SetPdfVersion(new PdfName("1.5"));
pdfWriter.SetFullCompression();
}
Process.Start("Test.pdf");
}
}
}
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analysis and resources for efficient Application Performance Management.
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_______________________________________________
iText-questions mailing list
iText-questions@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/itext-questions
iText(R) is a registered trademark of 1T3XT BVBA.
Many questions posted to this list can (and will) be answered with a reference
to the iText book: http://www.itextpdf.com/book/
Please check the keywords list before you ask for examples:
http://itextpdf.com/themes/keywords.php
