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Itextshart Font Size Too Small: 0 Error

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I am trying to create a pdf file from the html content. Yet, there is a matter that prevent it this is Font size too small: 0 error when ı click the button in hw.Parse(new

Solution 1:

iText[Sharp] HTMLWorker doesn't support CSS absolute-size values, which at least one line in your HTML is using, and causing the exception:

<span id='Label3' style='color:Red;font-size:xx-Large;font-weight:bold;'>ECN NO:</span> <span id='Label48' style='font-size:x-Large;'>aaa</span>

Remove the styles like font-size:xx-Large and you should be fine.

If you're open to using the new iText[Sharp] XML/HTML parsers, you can use CSS absolute-size values - something like this works with XML Worker version 1.1.3.0:

StringReader stringReader = new StringReader(@"
<!DOCTYPE htmlPUBLIC'-//W3C//DTD XHTML 1.0 Transitional//EN''http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd'><htmlxmlns='http://www.w3.org/1999/xhtml'><head><title></title></head><body><spanid='Label3'style='color:Red;font-size:XX-Large;font-weight:bold;'>ECN NO:</span><spanid='Label48'style='font-size:X-Large;'>aaa</span></body></html>
");
using (Document document = new Document()) {
  PdfWriter writer = PdfWriter.GetInstance(document, STREAM);
  document.Open();
  XMLWorkerHelper.GetInstance().ParseXHtml(
    writer, document, stringReader
  );
}

Solution 2:

In may case I used style="font-size:large;" which caused error. Changing it to style="font-size:18px;" solved the issue.

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