Put an image header in \documentclass{letter}

Question

Is there is any possibility to put an image header in a letter class document? I can put a footer image and an image for my signature, but I want to put an image on the top of the letter.

Answer 1

The letter class uses a page style called firstpage on the first page ...

\documentclass{letter}

\usepackage{graphicx}
\usepackage{fancyhdr}
\usepackage{geometry}
\usepackage{lipsum}

\geometry{headheight = 0.6in}
\fancypagestyle{firstpage}{\fancyhf{}\fancyhead[R]{\includegraphics[height=0.5in, keepaspectratio=true]{logo.pdf}}}
\fancypagestyle{plain}{\fancyhf{}\fancyhead[L]{\includegraphics[height=0.5in, keepaspectratio=true]{logo.pdf}}}
\pagestyle{plain}
\begin{document}%
    \begin{letter}{}%
        \opening{Dear Some Name,}
        \lipsum[1-10]
    \end{letter}%
\end{document}%

It turns out the firstpage page style is only used if \address has not been used. If address has been used, then the first page style is empty and you need to add

\fancypagestyle{empty}{\fancyhf{}\fancyhead[R]{\includegraphics[height=0.5in, keepaspectratio=true]{logo.pdf}}}

Answer 2

This is an extract from an in-house class we got for typesetting letters. Simply you just include the image.

\documentclass{letter}
\usepackage{graphicx}
\makeatletter
\newif\if@xl@logo
\@xl@logofalse
\def\setlogo#1{\@xl@logotrue\gdef\xl@companylogo{#1}}
 \setlogo{HSlogo}

\def\printlogo{%
 \if@xl@logo
  \includegraphics[width=.98\textwidth]{./\xl@companylogo}\par%
 \fi
}

\AtBeginDocument{\printlogo}
\begin{document}

\end{document}

Adjust your paper size with geometry to suit.