设置打印机作业边距A4

Question

我的问题是我无法正确打印页面：打印机总是在页面的左右边缘空白。我尝试设置不同的MediaPrintableArea，但结果始终相同。例如，我尝试过：         attribute.add（new MediaPrintableArea（159,246，width-20，height-20，MediaPrintableArea.MM））;但我无法正常工作。这是我的代码：

import java.awt.Graphics;
import java.awt.List;
import java.awt.image.BufferedImage;
import java.awt.print.PageFormat;
import java.awt.print.Printable;
import java.awt.print.PrinterException;
import java.awt.print.PrinterJob;
import java.io.File;
import java.io.IOException;

import javax.print.attribute.Attribute;
import javax.print.attribute.HashPrintRequestAttributeSet;
import javax.print.attribute.PrintRequestAttributeSet;
import javax.print.attribute.standard.Copies;
import javax.print.attribute.standard.Media;
import javax.print.attribute.standard.MediaPrintableArea;
import javax.print.attribute.standard.MediaSize;
import javax.print.attribute.standard.MediaTray;
import javax.print.attribute.standard.OrientationRequested;
import javax.print.attribute.standard.Sides;

import org.apache.commons.io.FileUtils;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.PDPageContentStream;
import org.apache.pdfbox.pdmodel.PDPageContentStream.AppendMode;
import org.apache.pdfbox.pdmodel.common.PDRectangle;
import org.apache.pdfbox.pdmodel.encryption.InvalidPasswordException;
import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;
import org.apache.pdfbox.printing.Orientation;
import org.apache.pdfbox.printing.PDFPageable;
import org.apache.pdfbox.rendering.ImageType;
import org.apache.pdfbox.rendering.PDFRenderer;
import org.apache.pdfbox.tools.imageio.ImageIOUtil;
import org.ghost4j.document.Document;
import org.ghost4j.renderer.SimpleRenderer;

public class STAMPA {
    public static void main (String[] args) throws InvalidPasswordException, IOException {
        PrinterJob job = PrinterJob.getPrinterJob();

        PrintRequestAttributeSet attributes = new HashPrintRequestAttributeSet();

        boolean ok = job.printDialog(attributes);
        System.setProperty("sun.java2d.cmm", "sun.java2d.cmm.kcms.KcmsServiceProvider");

        PDDocument documentAllegato = PDDocument.load(new File("C:\\19001925_20190225_405583658.pdf"));

        job.setPageable(new PDFPageable(documentAllegato, Orientation.AUTO, false, 300));
        Attribute[] attributeArray2 = attributes.toArray();
        Attribute copies2 = attributes.get(Copies.class);
        Attribute media2 = attributes.get(Media.class);
        Attribute mediaPrintableArea2 = attributes.get(MediaPrintableArea.class);
        Attribute mediaTray2 = attributes.get(MediaTray.class);
        Attribute orientationRequested2 = attributes.get(OrientationRequested.class);
        Attribute sides2 = attributes.get(Sides.class);
        attributes.remove(Sides.class);
        attributes.add(Sides.DUPLEX);

        try {
            job.print();
        } catch (PrinterException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}

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