使用itextpdf将excel转化为pdf + pdf加水印

      package com.aspose.cells;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;

public class TestForExcel2PDF {

    public static void main(String[] args) throws Exception {

        String sourceFilePath="e:/1.xlsx";
        String desFilePath="e:/1.pdf";
//        addWaterMark4Excel(sourceFilePath);
        excel2pdf(sourceFilePath, desFilePath);

    }
    
    public static void addWaterMark4Excel(String path) throws Exception {
        FileInputStream is = new FileInputStream(path);
        com.aspose.cells.Workbook workbook = new com.aspose.cells.Workbook(is);
        //Get the first default sheet
        Worksheet sheet = workbook.getWorksheets().get(0);

        //Add Watermark
        Shape wordart = sheet.getShapes().addTextEffect(
        		MsoPresetTextEffect.TEXT_EFFECT_11,"内部资料", "Arial Black", 50, false, true , 18, 8, 1, 1, 130, 800);

        //Get the fill format of the word art
        MsoFillFormat wordArtFormat = wordart.getFillFormat();

        //Set the color
        wordArtFormat.setForeColor(com.aspose.cells.Color.getGray());

        //Set the transparency
        wordArtFormat.setTransparency(0.5);

        //Make the line invisible
        MsoLineFormat lineFormat = wordart.getLineFormat();
        lineFormat.setVisible(false);

        //Save the file
        workbook.save(path);
    }


    /**
     * 获取license 去除水印
     * @return
     */
    public static boolean getLicense() {
        boolean result = false;
        try {
            InputStream is = TestForExcel2PDF.class.getClassLoader().getResourceAsStream("\\license.xml");
            License aposeLic = new License();
            aposeLic.setLicense(is);
            result = true;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return result;
    }

    /**
     * excel 转为pdf 输出。
     *
     * @param sourceFilePath  excel文件
     * @param desFilePathd  pad 输出文件目录
     */
    public static void excel2pdf(String sourceFilePath, String desFilePathd ){
        if (!getLicense()) { // 验证License 若不验证则转化出的pdf文档会有水印产生
            return;
        }
        try {
            Workbook wb = new Workbook(sourceFilePath);// 原始excel路径

            FileOutputStream fileOS = new FileOutputStream(desFilePathd);
            PdfSaveOptions pdfSaveOptions = new PdfSaveOptions();
            pdfSaveOptions.setOnePagePerSheet(true);


            int[] autoDrawSheets={3};
            //当excel中对应的sheet页宽度太大时，在PDF中会拆断并分页。此处等比缩放。
//            autoDraw(wb,autoDrawSheets);

            int[] showSheets={0};
            //隐藏workbook中不需要的sheet页。
            printSheetPage(wb,showSheets);
            wb.save(fileOS, pdfSaveOptions);
            fileOS.flush();
            fileOS.close();
            System.out.println("完毕");

        } catch (Exception e) {
            e.printStackTrace();
        }
    }


    /**
     * 设置打印的sheet 自动拉伸比例
     * @param wb
     * @param page 自动拉伸的页的sheet数组
     */
    public static void autoDraw(Workbook wb,int[] page){
        if(null!=page&&page.length>0){
            for (int i = 0; i < page.length; i++) {
                wb.getWorksheets().get(i).getHorizontalPageBreaks().clear();
                wb.getWorksheets().get(i).getVerticalPageBreaks().clear();
            }
        }
    }


    /**
     * 隐藏workbook中不需要的sheet页。
     * @param wb
     * @param page 显示页的sheet数组
     */
    public static void printSheetPage(Workbook wb,int[] page){
        for (int i= 1; i < wb.getWorksheets().getCount(); i++)  {
            wb.getWorksheets().get(i).setVisible(false);
        }
        if(null==page||page.length==0){
            wb.getWorksheets().get(0).setVisible(true);
        }else{
            for (int i = 0; i < page.length; i++) {
                wb.getWorksheets().get(i).setVisible(true);
            }
        }
    }

}