在Linux系统上使用Java可打印功能保存PDF文件

import java.awt.print.*;
import javax.print.*;
import javax.print.attribute.*;
import javax.print.attribute.standard.*;
import java.io.*;

public class PrintToPDF {
    public static void main(String[] args) {
        try {
            // 获取默认的打印机
            PrintService defaultPrinter = PrintServiceLookup.lookupDefaultPrintService();

            // 设置打印属性，指定输出格式为PDF
            PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
            pras.add(new Destination(new File("output.pdf").toURI()));

            // 构建打印作业
            PrinterJob job = PrinterJob.getPrinterJob();
            job.setPrintService(defaultPrinter);
            job.setPrintable(new Printable() {
                public int print(Graphics graphics, PageFormat pageFormat, int pageIndex) throws PrinterException {
                    if (pageIndex != 0) {
                        return NO_SUCH_PAGE;
                    }

                    // 进行打印操作，这里可以绘制需要打印的内容
                    Graphics2D g2d = (Graphics2D) graphics;
                    g2d.translate(pageFormat.getImageableX(), pageFormat.getImageableY());
                    g2d.drawString("Hello, World!", 100, 100);

                    return PAGE_EXISTS;
                }
            });

            // 执行打印操作
            job.print(pras);
        } catch (PrinterException e) {
            e.printStackTrace();
        }
    }
}