ă ş ţ chars aren't rendered by iTextSharp - pdf

I use iTextSharp in asp.net mvc to return pdf like this:
public class Pdf : IPdf
{
public FileStreamResult Make(string s)
{
using (var ms = new MemoryStream())
{
using (var document = new Document())
{
PdfWriter.GetInstance(document, ms);
document.Open();
using (var str = new StringReader(s))
{
var htmlWorker = new HTMLWorker(document);
htmlWorker.Parse(str);
}
document.Close();
}
HttpContext.Current.Response.ContentType = "application/pdf";
HttpContext.Current.Response.AddHeader("content-disposition", "attachment;filename=MyPdfName.pdf");
HttpContext.Current.Response.Buffer = true;
HttpContext.Current.Response.Clear();
HttpContext.Current.Response.OutputStream.Write(ms.GetBuffer(), 0, ms.GetBuffer().Length);
HttpContext.Current.Response.OutputStream.Flush();
HttpContext.Current.Response.End();
return new FileStreamResult(HttpContext.Current.Response.OutputStream, "application/pdf");
}
}
}
the problem is that characters like: ă ţ ş are not rendered

yetanothercoder is correct. That would do the trick... but there's another very similar question which I answered in a bit more detail:
iText + HTMLWorker - How to change default font?

Please try the folowing:
var unicodeFont = iTextSharp.text.pdf.BaseFont.CreateFont(iTextSharp.text.FontFactory.TIMES_ROMAN, iTextSharp.text.pdf.BaseFont.CP1250, iTextSharp.text.pdf.BaseFont.EMBEDDED);
acroFields.SetFieldProperty("txtContractorBirthPlace", "textfont", unicodeFont, null);
And it should do it for you.
You have to add the field property to every field you wish to have diacritics.
Baftă!

Related

Fill XFA without breaking usage rights

I have an XFA form that I can successfully fill in by extracting the XML modifying and writing back. Works great if you have the full Adobe Acrobat, but fails with Adobe Reader. I have seen various questions on the same thing with answers but they were some time ago so updating an XFA that is readable by Adobe Reader may no longer be doable?
I use this code below and I've utilised the StampingProperties of append as in the iText example but still failing. I'm using iText 7.1.15.
//open file and write to temp one
PdfDocument pdf = new(new PdfReader(FileToProcess), new PdfWriter(NewPDF), new StampingProperties().UseAppendMode());
PdfAcroForm form = PdfAcroForm.GetAcroForm(pdf, true);
XfaForm xfa = form.GetXfaForm();
XElement node = xfa.GetDatasetsNode();
IEnumerable<XNode> list = node.Nodes();
foreach (XNode item in list)
{
if (item is XElement element && "data".Equals(element.Name.LocalName))
{
node = element;
break;
}
}
XmlWriterSettings settings = new() { Indent = true };
using XmlWriter writer = XmlWriter.Create(XMLOutput, settings);
{
node.WriteTo(writer);
writer.Flush();
writer.Close();
}
//We now how to strip an extra xfa line if updating
if(update)
{
string TempXML= CSTrackerHelper.MakePath($"{AppContext.BaseDirectory}Temp", $"{Guid.NewGuid()}.XML");
StreamReader fsin = new(XMLOutput);
StreamWriter fsout = new(TempXML);
string linedata = string.Empty;
int cnt = 0;
while (!fsin.EndOfStream)
{
if (cnt != 3 && linedata != string.Empty)
{
fsout.WriteLine(linedata);
}
linedata = fsin.ReadLine();
cnt++;
}
fsout.Close();
fsin.Close();
XMLOutput = TempXML;
}
xlogger.Info("Populating pdf fields");
//Now loop through our field data and update the XML
XmlDocument xmldoc = new();
xmldoc.Load(XMLOutput);
XmlNamespaceManager xmlnsManager = new(xmldoc.NameTable);
xmlnsManager.AddNamespace("xfa", #"http://www.xfa.org/schema/xfa-data/1.0/");
string[] FieldValues;
string[] MultiNodes;
foreach (KeyValuePair<string, DocumentFieldData> v in DocumentData.FieldData)
{
if (!string.IsNullOrEmpty(v.Value.Field))
{
FieldValues = v.Value.Field.Contains(";") ? v.Value.Field.Split(';') : (new string[] { v.Value.Field });
foreach (string FValue in FieldValues)
{
XmlNodeList aNodes;
if (FValue.Contains("{"))
{
aNodes = xmldoc.SelectNodes(FValue.Substring(0, FValue.LastIndexOf("{")), xmlnsManager);
if (aNodes.Count > 1)
{
//We have a multinode
MultiNodes = FValue.Split('{');
int NodeIndex = int.Parse(MultiNodes[1].Replace("}", ""));
aNodes[NodeIndex].InnerText = v.Value.Data;
}
}
else
{
aNodes = xmldoc.SelectNodes(FValue, xmlnsManager);
if (aNodes.Count >= 1)
{
aNodes[0].InnerText = v.Value.Data;
}
}
}
}
}
xmldoc.Save(XMLOutput);
//Now we've updated the XML apply it to the pdf
xfa.FillXfaForm(new FileStream(XMLOutput, FileMode.Open, FileAccess.Read));
xfa.Write(pdf);
pdf.Close();
FYI I've also tried to set a field directly also with the same results.
PdfReader preader = new PdfReader(source);
PdfDocument pdfDoc=new PdfDocument(preader, new PdfWriter(dest), new StampingProperties().UseAppendMode());
PdfAcroForm pdfForm = PdfAcroForm.GetAcroForm(pdfDoc, true);
XfaForm xform = pdfForm.GetXfaForm();
xform.SetXfaFieldValue("VRM[0].CoverPage[0].Wrap2[0].Table[0].CSID[0]", "Test");
xform.Write(pdfForm);
pdfDoc.Close();
If anyone has any ideas it would be appreciated.
Cheers
I ran into a very similar issue. I was attempting to auto fill an XFA that was password protected while not breaking the certificate or usage rights (it allowed filling). iText7 seems to have made this not possible for legal/practical reasons, however it is still very much possible with iText5. I wrote the following working codeusing iTextSharp (C# version if iText5):
using iTextSharp.text;
using iTextSharp.text.pdf;
string pathToRead = "/Users/home/Desktop/c#pdfParser/encrypted_empty.pdf";
string pathToSave = "/Users/home/Desktop/c#pdfParser/xfa_encrypted_filled.pdf";
string data = "/Users/home/Desktop/c#pdfParser/sample_data.xml";
FillByItextSharp5(pathToRead, pathToSave, data);
static void FillByItextSharp5(string pathToRead, string pathToSave, string data)
{
using (FileStream pdf = new FileStream(pathToRead, FileMode.Open))
using (FileStream xml = new FileStream(data, FileMode.Open))
using (FileStream filledPdf = new FileStream(pathToSave, FileMode.Create))
{
PdfReader.unethicalreading = true;
PdfReader pdfReader = new PdfReader(pdf);
PdfStamper stamper = new PdfStamper(pdfReader, filledPdf, '\0', true);
stamper.AcroFields.Xfa.FillXfaForm(xml, true);
stamper.Close();
pdfReader.Close();
}
}
PdfStamper stamper = new PdfStamper(pdfReader, filledPdf, '\0', true)
you have to use this line.

Converting dynamic cshtml to pdf using iTextSharp?

I was using Rotativa for the conversion of html to pdf. My whole aim was to send receipt as pdf to customers emailid. It was working well locally but when deployed in GoDaddy Server its not supported. So I am planning to generate the pdf using iTextSharp(Viewers Opinion is also invited).
Code written for the generation of pdf in Rotativa:
public ActionResult GetPdfReceipt(int RegId)
{
var actionPDF = new Rotativa.ActionAsPdf("GetPdfReceipt", new { RegId = regId })
{
FileName = "Receipt.pdf"
};
//Dynamic student receipt pdf
var byteArrayDynamic = actionPDF.BuildPdf(ControllerContext);
}
public ActionResult GetPdfReceipt(int RegId)
{
try
{
var _mdlReceiptPdf = new ReceiptPdfVM
{
...
...
};
return View("Receipts", _mdlReceiptPdf);
}
catch (Exception ex)
{
return View("");
}
}
I have gone through some of the codes for generating pdf using iTextSharp and it was as follows
HttpContext.Current.Response.Clear();
HttpContext.Current.Response.Buffer = true;
HttpContext.Current.Response.Charset = "";
HttpContext.Current.Response.ContentType = "application/pdf";
HttpContext.Current.Response.AddHeader("content-disposition", "attachment;filename=LoginReportPerDay.pdf");
StringWriter sWriter = new StringWriter();
HtmlTextWriter hTWriter = new HtmlTextWriter(sWriter);
GridView1.RenderControl(hTWriter);
StringReader sReader = new StringReader(sWriter.ToString());
Document pdf = new Document(PageSize.A4);
HTMLWorker worker = new HTMLWorker(pdf);
PdfWriter.GetInstance(pdf, HttpContext.Current.Response.OutputStream);
pdf.Open();
worker.Parse(sReader);
pdf.Close();
HttpContext.Current.Response.Write(pdf);
HttpContext.Current.Response.Flush();
HttpContext.Current.Response.End();
How can I use the above code to render dynamically generated Receipt View pdf array bytes.

iTextSharp Html Arabic Mixed Content to PDF

We are in project for educational domain, where we are looking for importing Arabic content, Images (uri/base64 crypted texts), html tables.
We are facing issue while executing using HtmlWorker with Stream data. It throws error as "the document has no pages"
string str="html content contains arabic font texts/images";
using (MemoryStream ms = new MemoryStream())
{
using (iTextSharp.text.Document document = new iTextSharp.text.Document(iTextSharp.text.PageSize.A4, 25, 25, 30, 30))
{
using (iTextSharp.text.pdf.PdfWriter writer = iTextSharp.text.pdf.PdfWriter.GetInstance(document,ms))
{
using (var htmlWorker = new iTextSharp.text.html.simpleparser.HTMLWorker(document))
{
//HTMLWorker doesn't read a string directly but instead needs a TextReader (which StringReader subclasses)
using (var sr = new StreamReader(str)) /// We are facing issue at this juncture where it throws error.
{
//Parse the HTML
htmlWorker.Parse(sr);
}
}
document.Close();
writer.Close();
ms.Close();
Response.ContentType = "pdf/application";
Response.AddHeader("content-disposition", "attachment;filename=First_PDF_document.pdf");
Response.OutputStream.Write(ms.ToArray(), 0, ms.ToArray().Length);
}
}
}
Could you please help us regarding this?
Now,
I have tried with other approach:
using (var htmlWorker = new iTextSharp.text.html.simpleparser.HTMLWorker(document))
{
using (Stream s = GenerateStreamFromString(str))
{
using (var srt = new StreamReader(s))
{
//Parse the HTML
htmlWorker.Parse(srt); //this line throws error now.
}
}
}
public Stream GenerateStreamFromString(string s)
{
MemoryStream stream = new MemoryStream();
StreamWriter writer = new StreamWriter(stream);
writer.Write(s);
writer.Flush();
stream.Position = 0;
return stream;
}
Error message:
"The specified path, file name, or both are too long. The fully qualified file name must be less than 260 characters, and the directory name must be less than 248 characters."

Html to pdf some characters are missing (itextsharp) in Asp.Net MVC Application

I want to export razor view to pdf by using the itextsharp library. The problem is that some turkish characters such as İ,ı,Ş,ş etc... are missing in the pdf document. The code used to export the pdf is:
public PdfActionResult(object model)
{
Model = model;
}
public override void ExecuteResult(ControllerContext context)
{
IView viewEngineResult;
ViewContext viewContext;
if (ViewName == null)
{
ViewName = context.RouteData.GetRequiredString("action");
}
context.Controller.ViewData.Model = Model;
var workStream = new MemoryStream();
var document = new Document();
PdfWriter writer = PdfWriter.GetInstance(document, workStream);
writer.CloseStream = false;
document.Open();
viewEngineResult = ViewEngines.Engines.FindView(context, ViewName, null).View;
var sb = new StringBuilder();
TextWriter tr = new StringWriter(sb);
viewContext = new ViewContext(context, viewEngineResult, context.Controller.ViewData,
context.Controller.TempData, tr);
viewEngineResult.Render(viewContext, tr);
CultureInfo ci = new CultureInfo("az-Latn-AZ");
Encoding enc = Encoding.GetEncoding(ci.TextInfo.ANSICodePage);
Stream stream = new MemoryStream(enc.GetBytes(sb.ToString()));
XMLWorkerHelper.GetInstance().ParseXHtml(writer, document, stream, null);
document.Close();
new FileContentResult(workStream.ToArray(), "application/pdf").ExecuteResult(context);
}
}
Then I access it as:
public ActionResult StudentPdf(Guid studentId)
{
var model = _studentRepository.GetByIdGuid(studentId);
return new PdfActionResult(model);
}
Thanks for reply
by this way you can print all turkish character.
String htmlText = html.ToString();
Document document = new Document();
string filePath = HostingEnvironment.MapPath("~/Content/Pdf/");
PdfWriter.GetInstance(document, new FileStream(filePath + "\\pdf-"+Name+".pdf", FileMode.Create));
document.Open();
iTextSharp.text.html.simpleparser.HTMLWorker hw = new iTextSharp.text.html.simpleparser.HTMLWorker(document);
FontFactory.Register(Path.Combine(_webHelper.MapPath("~/App_Data/Pdf/arial.ttf")), "Garamond"); // just give a path of arial.ttf
StyleSheet css = new StyleSheet();
css.LoadTagStyle("body", "face", "Garamond");
css.LoadTagStyle("body", "encoding", "Identity-H");
css.LoadTagStyle("body", "size", "12pt");
hw.SetStyleSheet(css);
hw.Parse(new StringReader(htmlText));
Hope this helps
Regards,
Vinit Patel

how to append one pdf to other pdf file using itextsharp

How to append pages to one pdf file from another pdf file without creating a new pdf using itextsharp. I have metadata attached to one pdf so i just want to add only the other pdf pages,so that first pdf metadata should remain as it is.
Regards
Himvj
Assuming you have 2 pdf files: file1.pdf and file2.pdf that you want to concatenate and save the resulting pdf to file1.pdf (by replacing its contents) you could try the following:
using (var output = new MemoryStream())
{
var document = new Document();
var writer = new PdfCopy(document, output);
document.Open();
foreach (var file in new[] { "file1.pdf", "file2.pdf" })
{
var reader = new PdfReader(file);
int n = reader.NumberOfPages;
PdfImportedPage page;
for (int p = 1; p <= n; p++)
{
page = writer.GetImportedPage(reader, p);
writer.AddPage(page);
}
}
document.Close();
File.WriteAllBytes("file1.pdf", output.ToArray());
}
You can try this it add the whole document with metadata
public static void MergeFiles(string destinationFile, string[] sourceFiles)
{
try
{
//1: Create the MemoryStream for the destination document.
using (MemoryStream ms = new MemoryStream())
{
//2: Create the PdfCopyFields object.
PdfCopyFields copy = new PdfCopyFields(ms);
// - Set the security and other settings for the destination file.
//copy.Writer.SetEncryption(PdfWriter.STRENGTH128BITS, null, "1234", PdfWriter.AllowPrinting | PdfWriter.AllowCopy | PdfWriter.AllowFillIn);
copy.Writer.ViewerPreferences = PdfWriter.PageModeUseOutlines;
// - Create an arraylist to hold bookmarks for later use.
ArrayList outlines = new ArrayList();
int pageOffset = 0;
int f = 0;
//3: Import the documents specified in args[1], args[2], etc...
while (f < sourceFiles.Length)
{
// Grab the file from args[] and open it with PdfReader.
string file = sourceFiles[f];
PdfReader reader = new PdfReader(file);
// Import the pages from the current file.
copy.AddDocument(reader);
// Create an ArrayList of bookmarks in the file being imported.
// ArrayList bookmarkLst = SimpleBookmark.GetBookmark(reader);
// Shift the pages to accomidate any pages that were imported before the current document.
// SimpleBookmark.ShiftPageNumbers(bookmarkLst, pageOffset, null);
// Fill the outlines ArrayList with each bookmark as a HashTable.
// foreach (Hashtable ht in bookmarkLst)
// {
// outlines.Add(ht);
// }
// Set the page offset to the last page imported.
//copy.Writer.SetPageSize(rec);
pageOffset += reader.NumberOfPages;
f++;
}
//4: Put the outlines from all documents under a new "Root" outline and
// set them for destination document
// copy.Writer.Outlines = GetBookmarks("Root", ((Hashtable)outlines[0])["Page"], outlines);
//5: Close the PdfCopyFields object.
copy.Close();
//6: Save the MemoryStream to a file.
MemoryStreamToFile(ms, destinationFile);
}
}
catch (System.Exception e)
{
System.Console.Error.WriteLine(e.Message);
System.Console.Error.WriteLine(e.StackTrace);
System.Console.ReadLine();
}
}
public static void MemoryStreamToFile(MemoryStream MS, string FileName)
{
using (FileStream fs = new FileStream(#FileName, FileMode.Create))
{
byte[] data = MS.ToArray();
fs.Write(data, 0, data.Length);
fs.Close();
}
}