Need to automatically embed a u3d model into existing pdf

Hi Folks,

I have a U3D model file generated and can embed it into pdf by using Acrobat pro by manually inserting it. We want to automate the procedure of manually inserting the u3d model into PDFs. We have a product developed which already generates a pdf as an output. Now we want to embed this u3d model automatically through code. Can this be done using Adobe sdk? Is editing possible using Adobe sdk?