I want to create multiple file upload application(Client Object Modal) which upload the multiple document in the specific(selected) document library with the meta data(custom properties in library). is it possible to create application like this type of application ? if it is possible then how ?
Yes. I think you need to use an HTTP PUT to send the file to the server. Then, having sent it, you'll need to retrieve and set it's details using the client object model.
To upload a file, you can use something like: