Display Chinese Text in iTextSharp pdf from html c#

Question

I want to display chinese text from html to pdf by using itextsharp in c#

Text in HTML is properly visible but when i tried to make pdf from Xml Parser in iTextSharp it does not show me chinese texts.

UTF8 encoding is not working properly. I also given Encoding.UTF8 but it also not worked.

Below are my code to generate PDF from html.

 public static byte[] HtmlToPDFConvert(string baseHtml, Rectangle pageSize)
 {
        Stream htmlStream = new MemoryStream(Encoding.UTF8.GetBytes(baseHtml ?? ""));

        Document pdfDoc = new Document(pageSize, 18f, 18f, 18f, 18f);
        using (MemoryStream memoryStream = new MemoryStream())
        {
            PdfWriter writer = PdfWriter.GetInstance(pdfDoc, memoryStream);
            pdfDoc.Open();

            XMLWorkerHelper.GetInstance().ParseXHtml(writer, pdfDoc, htmlStream, null, Encoding.UTF8, FontFactory.FontImp);
            pdfDoc.Close();

            byte[] bytes = memoryStream.ToArray();
            memoryStream.Close();

            return bytes;
        }
 }

I've tried to convert an HTML to PDF by using pdfHTML (the successor of xmlParser), and it converted correctly. Can you provide with an example HTML you are trying to convert? — André Lemos, Dec 27 '19 at 11:14
Check example html from the link : https://pastebin.com/FmVkbs2W — Parth Patel, Dec 27 '19 at 12:00
I am able to render those glyphs correctly, by using the FontProvider, and pointing to a directory with fonts that support them, like Noto CJK. — André Lemos, Dec 27 '19 at 12:27

score 1 · Accepted Answer · answered Dec 27 '19 at 12:34

1

Since Xmlworker has been deprecated by pdfHTML, I've used it instead.

The only trick is to point to a font that supports the glyphs you want to use.

ConverterProperties props = new ConverterProperties();
FontProvider fontProvider = new DefaultFontProvider(true, true, true);
fontProvider.AddFont("fonts/NotoSansCJKjp-Regular.otf");
props.SetFontProvider(fontProvider);
PdfDocument doc = new PdfDocument(new PdfWriter(DEST));
HtmlConverter.ConvertToPdf(new FileStream(ORIG, FileMode.Open), doc, props);

answered Dec 27 '19 at 12:34

André Lemos

837
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if you are adamant to use the deprecated Xmlworker, take a look at the XMLWorkerFontProvider class for a probably similar solution. – André Lemos Dec 27 '19 at 12:40
i am using itext 5.5 how can use pdfhtml? – Parth Patel Dec 28 '19 at 06:42
to use pdfHTML, you need to use iText 7.1. Do you have any strict requirements to use iText 5.5? – André Lemos Dec 30 '19 at 07:40
Yes as of now we have strict requirement of iText 5.5 – Parth Patel Dec 30 '19 at 10:50
then you cannot use pdfHTML. I'd advise to look into XMLWorkerFontProvider for iText 5.5 (XmlWorker) to solve the issue in a similar manner. – André Lemos Dec 30 '19 at 13:51
check out https://stackoverflow.com/q/25604008/1566339 for instance – André Lemos Dec 30 '19 at 14:31

Display Chinese Text in iTextSharp pdf from html c#

1 Answers1