Itext7 generate pdf with Exception “Pdf indirect object belongs to other PDF document. Copy object to current pdf document.”

Question

i want to generate a pdf with itext 7,but some wrong happens to us:

com.itextpdf.kernel.PdfException: Pdf indirect object belongs to other PDF document. Copy         


        

Answer 1

To improve preformance you should reuse FontProgram:

private FontProgram bfChinese = null;

public GeneratePDFService() {
    String PdfFontPath = EnvironmentUtils.getClasspathFilePath("font/MSYH.TTF");
    try {
        bfChinese =  FontProgramFactory.createFont(PdfFontPath);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

And then:

public void createPdf() {
    ...
    PdfFont font = PdfFontFactory.createFont(bfChinese, "Identity-H", true);
    Paragraph p = new Paragraph("test").setFont(font);
    document.add(p);
    ...
}