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Max Kapustin asked:

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Hi. I'm generating a PDF document based on template. The document has multiple pages. The document can have about 5000 pages. When creating the 500-th page I get an overflow RAM (memory). Any idea? Thanks in advance.

public static void CreateBankBlank2012Year(string pdfTemplatePath, string directoryOutPdf, string nameOutPdf, AnnualReportsFilterParameters filterParametrs, string serverPath)
{
    // Get details salary
    IEnumerable<SalayDetailsForPdf> dataSalaryDetails = (IEnumerable<SalayDetailsForPdf>) GetSalaryData(filterParametrs);
 
    String fontPath = Path.Combine(serverPath + "\\Fonts", "STSONG.ttf");
    Font font = FontFactory.GetFont(fontPath, BaseFont.IDENTITY_H, 8);
 
    using (Document document = new Document())
    {
        using (PdfSmartCopy copy = new PdfSmartCopy(
            document, new FileStream(directoryOutPdf + nameOutPdf, FileMode.Create))
        )
        {
            document.Open();
 
            foreach (var data in dataSalaryDetails)                    
            {
                PdfReader reader = new PdfReader(pdfTemplatePath + @"\EmptyTemplateBankBlank_2012.pdf");
                using (var ms = new MemoryStream())
                {
                    using (PdfStamper stamper = new PdfStamper(reader, ms))
                    {
                        stamper.AcroFields.AddSubstitutionFont(font.BaseFont);
                        AcroFields form = stamper.AcroFields;
                                                                                                                            form.SetField("t1_address1", data.Address1);
 
                        form.SetField("t1_name", data.NameHieroglyphic);
 
                        // Other field ...

                        stamper.FormFlattening = true;
                    }
                    reader = new PdfReader(ms.ToArray());
 
                    copy.AddPage(copy.GetImportedPage(reader, 1));
                }
            }
        }                
    }
}
Tags: C#, itextsharp

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