I have two files. One is a pstricks cover. The other is the interior of the book. They both are fine on their own.
I would like to put the code for pstricks cover on the first page of the pdf and compile the whole document. However, when I do that, it messes up the formatting of the interior of the book.
I have tried
\newpage without success.
Basically, I want latex to pretend that there are two separate documents.