[Tex/LaTex] Include file with preamble to another tex file

external filesincludeinputtitles

I have two files:
paper.tex with text, title, and full preamble with authors and so on.
It compiles successfully.

The second file (B) has also a full preamble with title, authors, little text.
It compiles also successfully. File B is in other language than English.

I need to have the content of file B in paper.tex output WITH TITLE, AUTHORS, etc.

In other words, I need a document with TWO title pages – 1'st titlepage should be in English and come from paper.tex and should appear as normal.
Second title page should appear with ALL formatting in last page and should be in another language with different babel and so on.

\include{B} in this situation does not work.
How can I achieve this?
Thank all for any kind of help.

Best Answer

As indicated in comments, this sounds like a case where you essentially want to combine the two resulting PDF files. That can be done using pdfLaTeX and the pdfpages pages, but probably is easiest to do using the pdftk utility.