Wrong rendering of thousands separator with custom font in itext - pdf

Question

I have a rendering issue since I upgraded to iText 7.2 (from 7.1.7) with a custom font.
The thousand separator is not rendered correctly.
With iText 7.1.7
With iText 7.2
tableArticles.AddCell(new Cell(1, 2)
.Add(new Paragraph($"{bonCommande.Total:C}")
.SetFontSize(14)
.SetBold()
.SetTextAlignment(TextAlignment.RIGHT)
.SetFixedLeading(LeadingSize))
.SetBorder(new SolidBorder(1))
.SetVerticalAlignment(VerticalAlignment.MIDDLE)
.SetPadding(5));
I tried to update the font by drawing something for unicode char arabic thousands separator (U+066C) but without success.
I'm from Belgium and use "fr-BE".
Thanks for any help.
EDIT :
Here is some code example with the font and pdfs examples.
WeTransfer Link To PDFs and Font
public class PdfCurrencyModel : PageModel
{
private readonly IPdfCurrencyService _pdfCurrencyService;
public PdfCurrencyModel(IPdfCurrencyService pdfCurrencyService)
{
_pdfCurrencyService = pdfCurrencyService;
}
public IActionResult OnGetAsync()
{
//var stream = _pdfCurrencyService.GetPDFMemoryStream();
//return File(stream, MediaTypeNames.Application.Pdf, "Values.pdf");
var bytesArray = _pdfCurrencyService.GetPDFBytesArray();
return new FileContentResult(bytesArray, MediaTypeNames.Application.Pdf);
}
}
public interface IPdfCurrencyService
{
public MemoryStream GetPDFMemoryStream();
public byte[] GetPDFBytesArray();
}
public class PdfCurrencyService : IPdfCurrencyService
{
public MemoryStream GetPDFMemoryStream()
{
// Fonts
var fontTexte = PdfFontFactory.CreateFont(FontConstants.BrownBold,
PdfFontFactory.EmbeddingStrategy.FORCE_EMBEDDED);
// Initialisation
var ms = new MemoryStream();
// Initialize PDF writer
var writer = new iText.Kernel.Pdf.PdfWriter(ms);
writer.SetCloseStream(false);
// Initialize PDF document
var pdfDoc = new iText.Kernel.Pdf.PdfDocument(writer);
// Initialize document
var document = new Document(pdfDoc, iText.Kernel.Geom.PageSize.A4)
.SetFont(fontTexte).SetFontSize(10);
// Values
for (var i = 1000; i <= 2000; i += 100)
document.Add(new Paragraph(i.ToString("C")));
// Close document
document.Close();
//ms.Flush();
ms.Position = 0;
return ms;
}
public byte[] GetPDFBytesArray()
{
return GetPDFMemoryStream().ToArray();
}
}
EDIT 2 : I created a simple web app with the problem
Link to project

Answer 1

When using the "fr-BE" culture this line:
1000.ToString("C")
evaluates to:
1.000,00 €
It seems that iText does some processing with the "." (dot) because neither files are correct.
Seems that 7.2.1 changed the way the fonts are handled. 7.1.7 created a simple WinAnsi font while 7.2.1 creates a Type0 font.
7.1.7 does not write at all the dot in the PDF file:
BT
/F1 10 Tf
36 787.93 Td
(1000,00 €)Tj
ET
7.2.1 writes <0000> for the dot GID (instead of <0073>) in the PDF file (spaces in string added by me to emphasize each GID):
BT
/F1 10 Tf
36 787.93 Td
<0093 0000 00a2 00a2 00a2 0080 00a2 00a2 0074 00e1>Tj
ET

Answer 2

I finally managed to make it work.
It appears that iText use U+202F (NARROW NO-BREAK SPACE) as thousands separator in 7.2.x versions but it was not the case before.
My font didn't have something specified so it rendered a square.
I copy/paste from U+0020 which is "SPACE" and I don't have any problem anymore.
In fr-BE and fr-FR the thousands separator is a blank space and not an dot.
var separator = new CultureInfo("fr-BE", false)
.NumberFormat
.CurrencyGroupSeparator;
Debug.WriteLine($"Currency Group Separator for fr-BE is {(int)separator[0]}");
Debug.WriteLine($"As HEX {((int)separator[0]).ToString("X")}");
// Currency Group Separator for fr-BE is 8239
//As HEX 202F
Thanks anyone for your time.