I wanted a document with a header/footer on the first page and only a slighlty different footer on every other page. If I do it like suggested in different places:

\documentclass[12pt,a4paper,ngerman]{article}

\usepackage[utf8]{inputenc}
\usepackage[ngerman,german]{babel}
\usepackage{lastpage}

\usepackage[left=3cm,right=3cm,top=3cm,bottom=3cm]{geometry}

\title{title}
\author{some name}

\usepackage{fancyhdr}
\pagestyle{fancyplain}
\fancyhf{}

\lfoot{Some Text}
\rfoot{\thepage/\pageref{LastPage}}

\fancypagestyle{seite1}
{
\fancyhf{}

\rfoot{\thepage/\pageref{LastPage}}

}

\begin{document}
\thispagestyle{seite1}

\section*{Aufgabe 1:}

\newpage
\section*{Aufgabe 1:}
\end{document}


When I do it like that, all text after the first page is moved slightly to the top of the page. I figured out that the header is the problem. When I put the header on every page the text moves slightly down.

How can I get rid of the skip?
And after I achieved that how can I let the text start on the second and following pages on the same height as the header on the first page?

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Welcome to TeX.sx! –  Peter Jansson Jan 15 '13 at 8:47

Put \headheight 40pt \headsep 10pt outside the fancypage definition:

\documentclass[12pt,a4paper,ngerman]{article}

\usepackage[utf8]{inputenc}
\usepackage[ngerman,german]{babel}
\usepackage{lastpage}

\usepackage[left=3cm,right=3cm,top=3cm,bottom=3cm]{geometry}

\title{title}
\author{some name}

\pagestyle{fancyplain}
\fancyhf{}

\lfoot{Some Text}
\rfoot{\thepage/\pageref{LastPage}}

\fancypagestyle{seite1}
{
\fancyhf{}

\rfoot{\thepage/\pageref{LastPage}}
}
\headheight 40pt              %% put this outside
\headsep 10pt                 %% put this outside

\begin{document}
\thispagestyle{seite1}

\section*{Aufgabe 1:}

\newpage
\section*{Aufgabe 1:}
\end{document}


But you shouldn't use fancyheadings. In your log file you get a warning:

Package fancyheadings Warning: Please stop using fancyheadings!
(fancyheadings)                We will call fancyhdr with the very same
(fancyheadings)                fancyhdr is 99 percent compatible with
(fancyheadings)                their \plain... versions are no longer length
(fancyheadings)                parameters, but normal macros (to be changed
(fancyheadings)                with \renewcommand rather than \setlength)..


So use fancyhdr instead.

# Edit

To start the text on the second and following pages on the same height as the header on the first page:

\documentclass[12pt,a4paper,ngerman]{article}
\usepackage[utf8]{inputenc}
\usepackage[ngerman,german]{babel}
\usepackage{lastpage,lipsum} %% lipsum for dummy text remove in your file
\usepackage[margin=3cm,showframe]{geometry}
%
\title{title}
\author{some name}
%
\usepackage{fancyhdr}
\fancypagestyle{myfancy}
{
\fancyhf{}
\lfoot{Some Text}
\rfoot{\thepage/\pageref{LastPage}}
}
%
\fancypagestyle{seite1}
{
\fancyhf{}
\rfoot{\thepage/\pageref{LastPage}}
}
\pagestyle{myfancy}
\begin{document}
\thispagestyle{seite1}
\section*{Aufgabe 1:}
\lipsum[1-5]
Nulla egestas. Curabitur a leo. Quisque egestas wisi eget nunc.
Nam feugiat lacus vel est. Curabitur consectetuer.

%% Put the following line at the end of the first page
\restoregeometry
\lipsum[1-4]
\section*{Aufgabe 1:}

\end{document}


However, IMO, this spoils the consistency of page layout.

-
Thank you. I did use fancyhdr, fancyheading was just a test. How do I move the text up on the second page, without moving the footer? –  snippl Jan 15 '13 at 9:24
Can I make the value change in any way dynamic? When I write text, I normally don't use \newpage. –  snippl Jan 15 '13 at 9:32
If I use the the first suggestion, the footer moves up. If I use \afterpage nothing happens on the second page. –  snippl Jan 15 '13 at 9:50
@snippl See the edit. I don't think you can do it dynamically as this involves changing text height. So you have to put \restoregeometry` at the end of the page manually. –  Harish Kumar Jan 15 '13 at 12:01
thank you for your effort. –  snippl Jan 15 '13 at 12:20