# Why I see a line at the top of the first page?

When I'm writing a book using KOMA-Script usung class scrbook with package fancyhdr, I get a weird line at the top of the first page:

Here is MWE:

% Preview source code

%% Do not edit unless you really know what you are doing.
\documentclass[a4paper,oneside,english,hebrew,numbers=noenddot]{scrbook}
\usepackage{amsmath}
\usepackage{amsthm}
\usepackage{fontspec}
\usepackage{fancyhdr}
\pagestyle{fancy}
\setcounter{secnumdepth}{3}
\setcounter{tocdepth}{3}
\setlength{\parindent}{0bp}
\usepackage{color}
\usepackage[unicode=true,pdfusetitle,
bookmarks=true,bookmarksnumbered=false,bookmarksopen=false,
{hyperref}
\hypersetup{

\makeatletter

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% LyX specific LaTeX commands.
\pdfpageheight\paperheight
\pdfpagewidth\paperwidth

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% User specified LaTeX commands.
\newfontfamily\hebrewfont[Script=Hebrew]{David CLM}
\newfontfamily\hebrewfonttt[Script=Hebrew]{Miriam Mono CLM}
\newfontfamily\hebrewfontsf[Script=Hebrew]{Bellefair}

\fancypagestyle{plain}{ %
\fancyhf{}
\renewcommand{\footrulewidth}{0pt}
\cfoot{\thepage}
}

\makeatother

\usepackage{polyglossia}
\setdefaultlanguage{hebrew}
\setotherlanguage{english}
\begin{document}
\bigskip{}

\begin{center}
\fontsize{80}{80}\selectfont{\textbf{אבג}}
\par\end{center}

\bigskip{}

\part{אבג}

\chapter{אאאא}

\section{בבבב}

אאא

בבב

\section{אבג}
\end{document}


No matter how I change the code -- I can't control this line.

Do you know how can I remove it?

• Comment line 10 \pagestyle{fancy}? – AboAmmar May 23 '19 at 16:44
• The log says Usage of package fancyhdr' together (scrbook) with a KOMA-Script class is not recommended. (scrbook) I'd suggest to use ….. – user170109 May 23 '19 at 16:58
• @AboAmmar are you able to follow up comment with answer as that does seem to be at root of the problem – user170109 May 23 '19 at 18:33

Well, in your code are some issues:

1. Because I do not know hebrew and the specific problems with I simply deleted the usage of hebrew and hebrew font in your given code.
2. The usual way to define a titlepage in scrbook is to use command \maketitle (I added in the following mwe) or to define a titlepage with environment titlepage.
3. fancyhdr with scrbook can result in problems, better would be to use scrlayer-scrpage.
4. Your issue results from the using of this total unusual code printing the titlepage:

\bigskip{}

\begin{center}
\fontsize{80}{80}\selectfont{\textbf{titel}}
\par\end{center}

\bigskip{}


That code results that fancyhdr adds an headrule because your then working \pagestyle{fancy} added in your preamble added the headrule you do not want. To get rid of that you have to add

\thispagestyle{empty}


after \begin{document} or much better use \maketitle or environment titlepage.

In the following mwe without hebrew fonts I used first your wrong way printing the title and added afterward the correct usage of \maketitle:

\documentclass[%
a4paper,oneside,english,
% hebrew,
numbers=noenddot
]{scrbook}

\usepackage{amsmath}
\usepackage{amsthm}

\usepackage{fancyhdr}
\pagestyle{fancy}
\setcounter{secnumdepth}{3}
\setcounter{tocdepth}{3}

\usepackage{color}

\usepackage{blindtext}

\usepackage[%
unicode=true,pdfusetitle,
bookmarks=true,bookmarksnumbered=false,bookmarksopen=false,
]{hyperref}
\hypersetup{%
}

\fancypagestyle{plain}{ %
\fancyhf{}
\renewcommand{\footrulewidth}{0pt}
\cfoot{\thepage}
}

\begin{document}
\thispagestyle{empty} % <===============================================
\bigskip{}

\begin{center}
\fontsize{80}{80}\selectfont{\textbf{titel}}
\par\end{center}

\bigskip{}

\title{this is the title}
\author{john doe}
\maketitle % <==========================================================

\part{part}

\chapter{chapter}

\section{sectiona}

\blindtext

\section{sectionb}

\blindtext
\end{document}


and its result:

• The only thing that works (at the real example, not at the MWE) is \thispagestyle{empty}  - so you solve it for me with this simple code, but maybe for other uses the - I'll use the other part of the solution :-) – heblyx May 26 '19 at 9:38