Customization of the title slide in a beamer presentation

Question

I'm using CambridgeUSnew beamer theme. And I need to add additional information between author text and date text.

At this point I found only one working solution: add this text into author text, like this

\title[]{Title Text}

\author[Author B.C.]{Author B.C. \\
\quad \\
\quad \\
some extra text 1 \\
some extra text 2 \\
\quad \\
some extra text 3
}

\date{date text}

But I don't like this solution. Is there any better way to customize title page?

Answer 1

You can use your approach with some improvements: 1) Instead of \quad \\ you can use the optional argument of \\ to add some vertical space. 2) The \author command inserts its argument in the document information fields of the resulting PDF file. This will produce some warnings due to the use of \\; to turn off the automatic generation of those entries you can use the usepdftitle=false class option:

\documentclass[usepdftitle=false]{beamer}
\usetheme{CambridgeUS}

\title[]{Title Text}
\author[Author B.C.]{Author B.C. \\[2\baselineskip]
some extra text 1 \\
some extra text 2 \\[\baselineskip]
some extra text 3
}
\date{date text}

\begin{document}

\begin{frame}
  \titlepage
\end{frame}

\end{document}

Another possibility would be to use some of the predefined fields that go into the title page frame; for example, if not used, you could write the additional information in the \institution field, which writes the information between the author and the date:

\documentclass{beamer}
\usetheme{CambridgeUS}

\title[]{Title Text}
\author[Author B.C.]{Author B.C.}
\institute[]{\normalsize some extra text 1\\
some extra text 2 \\[\baselineskip]
some extra text 3
}
\date{date text}

\begin{document}

\begin{frame}
  \titlepage
\end{frame}

\end{document}

Answer 2

i wanted to add just a comment to Gonzalo's answer, but i think i don't have enough points.

instead of using usepdftitle=false you can do something like

\author{\texorpdfstring{your long title \\ with breaklines}{title for pdf}}

a complete solution would involve modifying the titlepage of the frame.