graphicsscaling
In a LaTeX document I have about 70 images which are scaled using the graphicx-package and
\includegraphics[scale=0.8]{foo.pdf}
where the scaling factor varies. Now I would like to rescale them all with a common factor, like
\newcommand*{\factor}{0.75}
\includegraphics[scale=\factor * 0.8]{foo.pdf}
except that is no LaTeX syntax. Can anyone provide a smart solution?
I don't think I have a full answer but I found myself with a similar problem one day and solved it using bold versions of smaller fonts. For som fonts it works and for some it doesn't. This is where you skill and taste comes into effect. Here is my case where I think it works: (the \hskips are cause it's an abbreviation)
\documentclass[12pt]{memoir}
\usepackage[osf]{mathpazo}
\begin{document}
\newcommand{\inchi}{%
\mbox{\textsc{i}%
\hskip 0.1 em {\scriptsize \textbf{n}}%
\hskip 0.1 em {\normalsize \textsc{c}}%
\hskip 0.1 em {\scriptsize \textbf{h}}%
\hskip 0.1 em {\normalsize \textsc{i}}%
}
}
Lorem ipsum \inchi dolor\ldots
\end{document}
I've tried a little black magic with LaTeX, and found out how to do it without external scripts ─ though it still is somewhat dirty and not that easy to use. Basically, you would need to call ImageMagick from inside LaTeX.
To do this, you need to call it with --shell-escape parameter. This allows for using a command named \write18, that executes a parameter passed to it. Then you could add the following code to the preamble:
\newcommand{\doConvert}[2]{\immediate\write18{convert #1 -resample %
300x300 -resize #2 #1.rs}}
\newcommand{\imgRs}[4]{\doConvert{#1.#2}{#3x#4}%
\includegraphics[width=#3, height=#4, type=#2, ext=.#2.rs, read=.#2.rs]{#1}%
}
This enables you to call \imgRs{file}{extension}{width_in_pts}{height_in_pts} in order to convert the image to 300 dpi and include it in the document.
Of course you could always specify the dimensions in inches or any other units: you would just have to change the call to \doConvert in imgRs to account for scaling from unit used to points -- and you would have to use the dimensions consistently. It could be possible to actually find out what were the units used, or make some parameters optional, but it's independent of this solution.
Best Answer