PdfRpt.Core.Helper.PdfImageHelper.GetITextSharpImageFromAcroForm C# (CSharp) Method

        public static iTextSharp.text.Image GetITextSharpImageFromAcroForm(
                            this PdfWriter pdfWriter,
                            string pdfTemplateFilePath,
                            IList<CellData> data,
                            Action<IList<CellData>, AcroFields, PdfStamper> onFillAcroForm,
                            IList<iTextSharp.text.Font> fonts,
                            int pageNumber = 1)
        {
            using (var writerStream = new MemoryStream())
            {
                var pdfReader = new PdfReader(pdfTemplateFilePath);
                using (var stamper = new PdfStamper(pdfReader, writerStream))
                {
                    foreach (var font in fonts)
                    {
                        stamper.AcroFields.AddSubstitutionFont(font.BaseFont);
                    }

                    var form = stamper.AcroFields;
                    form.GenerateAppearances = true;
                    onFillAcroForm.Invoke(data, form, stamper);

                    stamper.FormFlattening = true;

                    stamper.Writer.CloseStream = false;
                    stamper.Close();
                    pdfReader.Close();
                }

                writerStream.Position = 0;
                var reader = new PdfReader(writerStream);
                var importedPage = pdfWriter.GetImportedPage(reader, pageNumber);
                //reader.Close(); // iTextSharp 5.4.1.0 needs this to be open.
                return iTextSharp.text.Image.GetInstance(importedPage).checkImage();
            }
        }