Possible Duplicate:
Which graphics formats can be included in documents processed by latex or pdflatex?
I am in the process of writing a paper for submission to PLOS ONE. Under their manuscript guidelines, they write that all photos (termed "half-tones") have to be submitted as tiff files.
How do I include tiff files in latex? At the moment my minimal example looks like this:
\documentclass[a4paper]{article}
\usepackage[latin1]{inputenc}
\usepackage[pdftex]{graphicx}
\title{hep}
\author{hep}
\usepackage{pdfpages}
\begin{document}
\maketitle
\includegraphics[width=\textwidth]{figurer/artifact.tif}
\end{document}
Compiling it with texlive I get:
! LaTeX Error: Unknown graphics extension: .tif.
Most threads I come across simply advice the user to change the image format, but that is not really an option here. It would be preferable if the fix also worked with elsarticle.
