PDF manipulation tool (free)

[GrizzlyBear]

Hi.

I am looking for a free pdf tool, specifically want is something that will allow me to add in one or two pages from another pdf, or add multiple PDF files together.


The Microsoft PDF creator does not allow me to add in pages from other PDF documents, I want to insert one or two pages from a document.

I am looking for something free as it is only to sort out a small number of files, and really it is just for convenience as there are one or two missing pages in the middle.

Any one used anything good? easy to use?

Thanks in advance.