Aspose for java 给word，excel，ppt增加文字水印

资源包可以通过，maven项目导入（下面是下载excel相关资源包）：

    AsposeJavaAPI
    Aspose Java API
    https://repository.aspose.com/repo/



    com.aspose
    aspose-cells
    19.11

也可以在仓库下载对应的jar包：
https://repository.aspose.com/repo/com/aspose/

excel 加水印的例子：

 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_1,
                "水印文字", "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.getRed());

        //Set the transparency
        wordArtFormat.setTransparency(0.9);

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

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

待续……