Java调用PDFBox打印自定义纸张PDF

打印对象

一份设置为A3纸张, 页面边距为(10, 10, 10, 10)mm的PDF文件.

PageFormat

 默认PDFPrintable无法设置页面大小.

1         PDFPrintable printable = new PDFPrintable(document);
2         PrinterJob job = PrinterJob.getPrinterJob();
3         job.setPrintable(printable);

需要把它放到一个Book中, 再设置即可

1         Book book = new Book();
2         book.append(printable, pageFormat);
3         printerJob.setPageable(book);
4         printerJob.print();

设置纸张属性

1         Paper paper = new Paper();
2         paper.setSize(width, height);
3         // 设置边距
4         paper.setImageableArea(marginLeft, marginRight, width - (marginLeft + marginRight), height - (marginTop + marginBottom));
5         // 自定义页面设置
6         PageFormat pageFormat = new PageFormat();
7         // 设置页面横纵向
8         pageFormat.setOrientation(PageFormat.PORTRAIT);
9         pageFormat.setPaper(paper);

注意: 这边计量单位都是在dpi 72下的尺寸.  

如果拿到是mm, 需要转为px. 例如10mm转换

10 * 72 * 10 / 254 = 28px

如果打印出现了截断, 一般是因为没有添加自定义纸张导致的. 参考 Java读取打印机自定义纸张.

完整代码如下

 1         InputStream in = new FileInputStream("d:\a3.pdf");
 2         PDDocument document = PDDocument.load(in);
 3         PDFPrintable printable = new PDFPrintable(document, Scaling.ACTUAL_SIZE);
 4 
 5         PrinterJob printerJob = PrinterJob.getPrinterJob();
 6 
 7         PaperSize a3 = PaperSize.PAPERSIZE_A3;
 8         // A3 纸张在72 dpi下的宽高 841 * 1190
 9         int width = a3.getWidth().toPixI(72);
10         int height = a3.getHeight().toPixI(72);
11         // 10mm边距, 对应 28px
12         int marginLeft = 28;
13         int marginRight = 28;
14         int marginTop = 28;
15         int marginBottom = 28;
16 
17         Paper paper = new Paper();
18         paper.setSize(width, height);
19         // 设置边距
20         paper.setImageableArea(marginLeft, marginRight, width - (marginLeft + marginRight), height - (marginTop + marginBottom));
21         // 自定义页面设置
22         PageFormat pageFormat = new PageFormat();
23         // 设置页面横纵向
24         pageFormat.setOrientation(PageFormat.PORTRAIT);
25         pageFormat.setPaper(paper);
26 
27         Book book = new Book();
28         book.append(printable, pageFormat);
29         printerJob.setPageable(book);
30         printerJob.print();