Uploading the Documetns from BSP into R/3 Application Server

Hi,

Can any one please help me in finding out the procedure for "Uploading the Documents (in word format or pdf format or normal text documents) from the BSP Application in to the Back end R/3 Application Server".

If any one having the Sample code for the same, please help us by providing the way to do it.

Thanks & Regards

Sumanth