Numerous titles and headers

Question

I want more than one title for each topic in one document, I don't want to just combine two or three pdfs. And I want to show different headers starting from each title page. There's one problem I cannot solve.

I just used

\documentclass[a4paper,12pt]{article}
\usepackage[utf8]{inputenc}
\usepackage{fancyhdr}
\usepackage{titling}
\pagestyle{fancy}
\setlength{\parindent}{0pt}
\setlength{\parskip}{8pt}
\setlength{\topmargin}{-0.5cm}
\setlength{\droptitle}{-1.5in}
\fancyhead{}
\lhead{Personal Statement}
\rhead{name}
\renewcommand{\headrulewidth}{0.4pt}
\renewcommand{\footrulewidth}{0pt}
\title{Personal Statement}
\author{name}
\date{Oct 25 2013}
\begin{document}
\maketitle
 a lot of contents here
\title{Previous Projects and Future Plans}
\author{}
\date{}
\fancyhead{}
\lhead{Previous Projects and Future Plans}
\rhead{name}
\renewcommand{\headrulewidth}{0.4pt}
\renewcommand{\footrulewidth}{0pt}
\maketitle
a lot of contents here
\end{document}

The titles can be displayed correctly, but headers cannot. The last page under the first title displayed the second header, I don't know why because my \lhead{} and \rhead{} are after the second \title. Hope someone can help.

I'm also wondering if it's formal to use \tile and \maketitle several times in one document? If not, is there any better way to do so? And could anybody tell me the scope of the typesetting macros at the beginning (\setlength, \lhead and so on)? I'm not sure how to limit their scope if they're meant to be applied to the whole contents of the document. Thanks a lot.

Answer 1

You need to clear the page (or rather \cleardoublepage) to get the headers right.

\documentclass{article}
\usepackage{fancyhdr}
\usepackage{blindtext}
\usepackage{showframe}
\pagestyle{fancy}
\fancyhead{}
\lhead{Personal Statement}
\rhead{name}
\renewcommand{\headrulewidth}{0.4pt}
\renewcommand{\footrulewidth}{0pt}
\title{Personal Statement}
\author{name}
\date{Oct 25 2013}
\begin{document}
\maketitle
\blinddocument
\cleardoublepage%<- important
\title{Previous Projects and Future Plans}
\author{}
\date{}
\fancyhead{}
\lhead{Previous Projects and Future Plans}
\rhead{name}
\renewcommand{\headrulewidth}{0.4pt}
\renewcommand{\footrulewidth}{0pt}
\maketitle
\blinddocument
\end{document}

But looking at the output of your document, it seems like to set chapter titles provided by a report or book class:

\documentclass{report}
\usepackage{fancyhdr}
\usepackage{blindtext}
\usepackage{showframe}
\pagestyle{fancy}
\fancyhead{}
\rhead{name}
\lhead{\leftmark}
\renewcommand{\headrulewidth}{0.4pt}
\renewcommand{\footrulewidth}{0pt}
\title{Personal Statement}
\author{name}
\date{Oct 25 2013}
\begin{document}
\chapter{Personal Statement}
\blindtext[10]
\chapter{Previous Projects and Future Plans}
\blindtext[10]
\end{document}