How to write metadata into document

[giluka]

Hi all,
i want to copy all metadata i've added or updated into an alfresco node (related to a document) to document itself.
In this manner when document will be downloaded it will contains all metadata like in alfresco.

Is it possibile to do that ?

Thanks.

[scopio]

Further more I am using Alfresco 4.2.e and I want this working on Alfresco share.