reference to tex document

Question

is there any way where i can put a label on a full latex document and refer to it in another tex file.

e.g. supplement.tex

\documentclass[review,12pt]{article}
\usepackage{graphicx}
\begin{document}
\label{supplement1}


something

\end{document}

and in the main document main.tex do something like:

    \documentclass[review,12pt]{article}
    \usepackage{graphicx}
\externaldocument{supplement}
    \begin{document}


    something is refered from Supplement file~\ref{supplement1}

    \end{document}

EDIT

thanks for your comments, what i basically want is not to refer to a section or chapter in another document, but i want to refer to the whole document.

Answer 1

Your question could be clearer (as seen from the comments and close/open votes) but I think you want

\documentclass[12pt]{article}
    \usepackage{hyperref}

    \begin{document}


    something is refered from Supplement file~\href{supplement1.pdf}{supplement1}

\end{document}

which makes the word supplement1 a link to supplement1.pdf

Answer 2

Solution 1

You can use the xr package to reference to other LaTeX document.

In the file supplementmain.tex you say:

\usepackage{xr}
\externaldocument{supplement}
...
\ref{ext:supplement}

Note: normally xr doesn't add hyperlinks. Use zref package for this. You only need to replace \externaldocument with \zexternaldocument.

Solution 2

A minimal working example taken from the following site: GUIT

First.tex

\documentclass[a4paper]{book}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}

\usepackage{xr-hyper}
\usepackage{hyperref}
\externaldocument[S-]{Second}[Second.pdf]
\begin{document}
\chapter{One}\label{chp:one}
\chapter{Two}\label{chp:two}
Bla Bla Bla.
\end{document}

Second.tex

\documentclass[a4paper]{book}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}

\usepackage{xr-hyper}
\usepackage{hyperref}
\externaldocument[F-]{First}[First.pdf]
\begin{document}
\chapter{Beginning}\label{chp:One}
Hello!
\chapter{Continuation}
I read chapters~\ref{F-chp:one}~and~\ref{F-chp:two} of the first file.

\end{document}

GUIT also says that in this way you have the hyperlink to the first file.