使用节点js上载PDF文件

Question

我正在尝试使用节点js上传PDF文件，但我能够这样做。 如果有任何插件或multer可以使用相同的请帮助。 在这里我上传个人资料图片我想上传PDF文件，它可以存储超过30个文件。

//var multer  = require('multer')
//var upload = multer({ dest: 'public/uploads/' });

router.post('/speaker', upload.single('profile_pic'), function (req, res) {
  
    var speakerForm = JSON.parse(req.body.speaker);
    var speaker = new Speaker();
    speaker.name = speakerForm.name;
    speaker.job_title = speakerForm.job_title;
    speaker.email = speakerForm.email;
    speaker.company = speakerForm.company;
    speaker.description = speakerForm.description;
    speaker.uid = speakerForm.uid;
    if(req.file){
        var profile_pic = req.file;
            profile_pic.destination = "uploads/";
            profile_pic.path = "uploads/"+profile_pic.filename;
            speaker.profile_pic = profile_pic;
    }
 
    speaker.save(function(err,speakerobj){
        if(err){
          return res.send(500, err);
        }
        return res.json(speakerobj);
    });

});