使用itextsharp创建pdf / A-3 [英] Create pdf/A-3 using itextsharp

问题描述

你能帮我创建一个带有itextsharp的嵌入式xml文件的pdf / A-3。我正在尝试创建，但得到错误所有字体必须嵌入。这不是：Helvetica

我在这里提供的示例代码

Can you help me to create a pdf/A-3 with an embedded xml file with itextsharp . I am trying to create but got error "All the fonts must be embedded. This one isn't: Helvetica"
The sample code I have provided here

using iTextSharp.text.pdf;
using  iTextSharp.text;

private void createPdfA()
{

    Document document = new Document();

    // Create PdfAWriter with PdfAConformanceLevel.PDF_A_3B option if you
    // want to get a PDF/A-3b compliant document.
    PdfAWriter writer = PdfAWriter.GetInstance(document,
            new FileStream("./xmp_metadata.pdf",FileMode.Create),
            PdfAConformanceLevel.PDF_A_3B);
    // Create XMP metadata. It's a PDF/A requirement.
    writer.CreateXmpMetadata();

    document.Open();

    // Set output intent. PDF/A requirement.
    ICC_Profile icc = ICC_Profile
            .GetInstance(
                   "./sRGB Color Space Profile.icm");
    writer.SetOutputIntents("Custom", "", "http://www.color.org",
            "sRGB IEC61966-2.1", icc);

    // All fonts shall be embedded. PDF/A requirement.

    var fonts=FontFactory.GetFont(          
            "./FreeSansBold.ttf",
            BaseFont.WINANSI, BaseFont.EMBEDDED, 10);
    Font normal9 = FontFactory.GetFont(
            "./FreeSans.ttf",
            BaseFont.WINANSI, BaseFont.EMBEDDED, 9);
    Font bold9 = FontFactory.GetFont(
            "./FreeSansBold.ttf",
            BaseFont.WINANSI, BaseFont.EMBEDDED, 9);
    Font normal8 = FontFactory.GetFont(
            "./FreeSans.ttf",
            BaseFont.WINANSI, BaseFont.EMBEDDED, 8);


    // Creating PDF/A-3 compliant attachment.
    PdfDictionary parameters = new PdfDictionary();
    parameters.Put(PdfName.MODDATE, new PdfDate());
    PdfFileSpecification fileSpec = PdfFileSpecification.FileEmbedded(
            writer, "./invoice.xml",
            "invoice.xml", null, "application/xml", parameters, 0);
    fileSpec.Put(new PdfName("AFRelationship"), new PdfName("Data"));
    writer.AddFileAttachment("invoice.xml", fileSpec);
    PdfArray array = new PdfArray();
    array.Add(fileSpec.Reference);
    writer.ExtraCatalog.Put(new PdfName("AF"), array);


    // From here on we can add content to the PDF just like we would do for
    // a regular PDF.

    // Building header.
    document.Add(new Paragraph("Invoice number: " + 1));
 //   document.Add(new Paragraph("\n", normal8));
    document.Add(new Paragraph("Dear " +"NAMEInvoice"));
    document.Add(new Paragraph(
            "Thank you "
            ));
    document.Add(new Paragraph("\n"));

    document.Close();
    writer.Close();
}

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