private static byte[] GeneratePDF(string pathToPDFTemplate, PdfSymbols pdf)
{
MemoryStream newFileStream;
using (var existingFileStream = new FileStream(pathToPDFTemplate, FileMode.Open))
using (newFileStream = new MemoryStream())
using (var pdfReader = new PdfReader(existingFileStream))
using (var stamper = new PdfStamper(pdfReader, newFileStream))
{
var form = stamper.AcroFields;
form.GenerateAppearances = true;
if (form.Fields.Keys.Contains(nameof(pdf.CertificateName)) && pdf.CertificateName != null)
{
form.SetField(nameof(pdf.CertificateName), pdf.CertificateName);
}
if (form.Fields.Keys.Contains(nameof(pdf.Date)) && pdf.Date != null)
{
form.SetField(nameof(pdf.Date), pdf.Date);
}
if (form.Fields.Keys.Contains(nameof(pdf.Details)) && pdf.Details != null)
{
form.SetField(nameof(pdf.Details), pdf.Details);
}
if (form.Fields.Keys.Contains(nameof(pdf.StudentName)) && pdf.StudentName != null)
{
form.SetField(nameof(pdf.StudentName), pdf.StudentName);
}
if (form.Fields.Keys.Contains(nameof(pdf.Author)) && pdf.Author != null)
{
form.SetField(nameof(pdf.Author), pdf.Author);
}
if (form.Fields.Keys.Contains(nameof(pdf.Company)) && pdf.Company != null)
{
form.SetField(nameof(pdf.Company), pdf.Company);
}
stamper.FormFlattening = true;
}
return(newFileStream.ToArray());
}
// Example:
// PdfUtils.GenerateCerfificate(env, "test.pdf", "cerBOficat2.pdf", new PdfSymbols { FirstName = "BO" });
public static byte[] GenerateCerfificate(IHostingEnvironment env, string templateName, PdfSymbols pdfSymbols)
{
var pathWithoutWwwRoot = env.WebRootPath.Substring(0, env.WebRootPath.Length - ("\\wwwroot").Length);
var templatePath = pathWithoutWwwRoot + $@"\PDF\Templates\{templateName}";
return(PdfUtils.GeneratePDF(templatePath, pdfSymbols));
}