a script to convert docx to pdf by word application running in WScript.exe or CScript.exe

doc2pdf.js

/* Batch convert *.docx to *.pdf file using Word application */

function args() {
    var ret = [];
    for (var i = 0; i < WScript.Arguments.length; i++)
        ret[i] = WScript.Arguments(i);
    return ret;
}


function print() {
    function format(obj) {
        switch(typeof(obj)) {
        case "undefined":
            return "<undefined>";
            break;

        case "string":
        case "number":
        case "boolean":
            return String(obj);

        case "function":
            return "<function>";

        case "object":
            if (null == obj)
                return "<null>";
            if (obj instanceof Array) {
                var arr = [];
                for (var k = 0; k < obj.length; k++)
                    arr.push(format(obj[k]));
                return "["+arr.join(", ")+"]";
            }
            //var arr = [];
            //var keys = Object.keys(obj);
            //for (var k = 0; k < keys.length; k++) {
            //    WScript.Echo(keys[i]);
            //    arr.push(keys[k]+": "+format(obj[keys[k]]));
            //}
            //return "{"+arr.join(",\n")+"}";
            return "<object>";

        default:
            return "<Unkown Type>";
        }
    }

    var args = print.arguments;
    var len = args.length;
    var arr = [];
    for (var i = 0; i < len; i++)
        arr.push(format(args[i]));
    WScript.Echo(arr.join(""));
}


function convert(word, from, to)
{
    var doc = word.Documents.Open(from);
    var format_pdf = 17;
    doc.SaveAs(to, format_pdf);
    doc.close();
}


function main()
{
    var files = args();
    var fso = new ActiveXObject("Scripting.FileSystemObject");

    try {
        var word = new ActiveXObject("Word.Application");
        word.Visible = false;
        for (var i = 0; i < files.length; i++) {
            var from = fso.GetAbsolutePathName(files[i]);
            var to = from.replace(/\.docx?$/, ".pdf");
            if (!fso.FileExists(from)) {
                print("File ", from, " don't exist, ignore it.");
            } else {
                if (fso.FileExists(to)) {
                    print("File ", to, " exists, overwrite it!");
                }
                convert(word, from, to);
                print("Convert ", from, " to ", to, " Success!");
            }
        }
    } catch(e) {
        print("Please Install Word Application!");
    } finally {
        word.Quit();
    }
}

main();