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POHow to add images to pdf with template and concat of pages
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copied!<p>I'm struggling to insert images on a multi-page PDF. To create several pages I'm using PdfConcatenate, and it works. I get to add pages of my template perfectly. The problem starts when I try to add images. It just doesn't load them.</p> <p>Here's the code that works to add images:</p> <pre><code> string pdfTemplate = @"Tools\template.pdf"; string targetPdfPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory), fileName + ".pdf"); FileStream output = new FileStream(targetPdfPath, FileMode.Create); PdfConcatenate pdfConcatenate = new PdfConcatenate(output); PdfReader pdfReader = new PdfReader(pdfTemplate); MemoryStream memoryStream = getMemoryStream(output); PdfStamper pdfStamper = new PdfStamper(pdfReader, output); int cardIndex = 1; foreach (Registry reg in registries) { setFields(reg, pdfStamper, cardIndex); if (cardIndex == 4) { pdfConcatenate.AddPages(pdfReader); pdfReader = new PdfReader(pdfTemplate); pdfStamper = new PdfStamper(pdfReader, output); cardIndex = 1; } else { cardIndex++; } } //if (cardIndex != 1) // pdfConcatenate.AddPages(pdfReader); //make the form no longer editable pdfStamper.FormFlattening = true; pdfStamper.Close(); pdfReader.Close(); //pdfConcatenate.Close(); </code></pre> <p>If use MemoryStream for PdfStamper and uncomment these lines:</p> <pre><code>//if (cardIndex != 1) // pdfConcatenate.AddPages(pdfReader); //pdfConcatenate.Close(); </code></pre> <p>I get it to add pages, but without images.</p> <p>Any idea of what is wrong?</p> <blockquote> <p><strong>SOLUTION: (Thanks to @mkl)</strong></p> </blockquote> <pre><code> string pdfTemplate = @"Tools\template.pdf"; string targetPdfPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory), fileName + ".pdf"); FileStream output = new FileStream(targetPdfPath, FileMode.Create); PdfConcatenate pdfConcatenate = new PdfConcatenate(output); PdfReader pdfReader = new PdfReader(pdfTemplate); MemoryStream memoryStream = new MemoryStream(); PdfStamper pdfStamper = new PdfStamper(pdfReader, memoryStream); int cardIndex = 1; foreach (Registry reg in registries) { setFields(reg, pdfStamper, cardIndex); if (cardIndex == 4) { pdfStamper.FormFlattening = true; pdfStamper.Close(); PdfReader tempReader = new PdfReader(memoryStream.ToArray()); pdfConcatenate.AddPages(tempReader); memoryStream = new MemoryStream(); pdfReader = new PdfReader(pdfTemplate); pdfStamper = new PdfStamper(pdfReader, memoryStream); cardIndex = 1; } else { cardIndex++; } } if (cardIndex != 1) { pdfStamper.FormFlattening = true; pdfStamper.Close(); PdfReader tempReader = new PdfReader(memoryStream.ToArray()); pdfConcatenate.AddPages(tempReader); tempReader.Close(); } pdfStamper.Close(); pdfReader.Close(); pdfConcatenate.Close(); </code></pre>

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