How to embed a pdf in a pdf file like we embed in MS word/PPT

Please help me

I receive some jobs in word files (sometimes in PPT) with PDFs embeded and want me to make compatible for viewing on ipad and PC as well.

I found creating/inserting navigation menus in PDF itself could help me in flowing as the solution using hyperlinks and inserting the destination pages at the end of pdf which resulted in increase in number of pages. Please can you suggest me if there is anything I can do better. (As our client is bothering about number of pages in pdf)

Hope I presented my problem clearly.

Regards,

Hari