// 获取当前文档的总页数
var totalPages = this.numPages;
// 获取当前文档的名称
var docName = decodeURI(this.documentFileName);

// 获取当前文档的全路径
var docPath = decodeURI(this.path);

// 获取当前文档的父路径
var docParentPath = decodeURI(this.path.replace(/[^/\\]*$/, ""));

var pt = 72/25.4;
// 遍历每一页
for (var i = 0; i < totalPages; i++) {
    // 获取当前页面的尺寸 如果页面有旋转,尺寸不一定正确
    var pageWidth = this.getPageBox("Media", i)[2]/pt;
    var pageHeight = this.getPageBox("Media", i)[1]/pt;
    
    // 设置水印文本内容(1.450001).toFixed(1)
    var text =docPath+"《"+ pageWidth.toFixed(1)+'x'+pageHeight.toFixed(1)+"》"+"["+ (i + 1) + "-" + totalPages + "]";

    // 添加水印到当前页面
    this.addWatermarkFromText({
        cText: text,
        nTextAlign: app.constants.align.left,
        nHorizAlign: app.constants.align.left,
        nVertAlign: app.constants.align.bottom,
        nHorizValue: 0,
        nVertValue: 0,
        aColor: ["CMYK", 0, 0, 0, 1],
        //aColor: color.black,
        cFont: "MicrosoftYaHei",
        nFontSize: 5,
        nStart: i,
        nEnd: i,
        bOnTop: false
    });
}