Is there a way to remove white margins when importing a pdf file?
A new command that works like \includegraphics
, but crops the pdf image:
\newcommand{\includeCroppedPdf}[2][]{%
\immediate\write18{pdfcrop #2}%
\includegraphics[#1]{#2-crop}}
Remember: \write18
needs to be enabled. For most TeX distros set the --shell-escape
flag when running latex
/pdflatex
etc.
Example
\documentclass{article}
\usepackage{graphicx}
\newcommand{\includeCroppedPdf}[2][]{%
\immediate\write18{pdfcrop #2}%
\includegraphics[#1]{#2-crop}}
\begin{document}
\includeCroppedPdf[width=\textwidth]{test}
\end{document}
Avoid cropping on every compile
To avoid cropping on every document compilation, you could check if the cropped file already exists. (some checksum would be better)
\documentclass{article}
\usepackage{graphicx}
\newcommand{\includeCroppedPdf}[2][]{%
\IfFileExists{./#2-crop.pdf}{}{%
\immediate\write18{pdfcrop #2 #2-crop.pdf}}%
\includegraphics[#1]{#2-crop.pdf}}
\begin{document}
\includeCroppedPdf[width=\textwidth]{test}
\end{document}
MD5 Checksum Example
The Idea is to save the MD5 of the image and compare it on the next run. This requires the \pdf@filemdfivesum
macro (only works with PDFLaTeX
or LuaLaTeX
). For XeLaTeX
You could use \write18
with md5sum
utility or do a file diff.
\documentclass{article}
\usepackage{graphicx}
\usepackage{etoolbox}
\makeatletter
\newcommand{\includeCroppedPdf}[2][]{\begingroup%
\edef\temp@mdfivesum{\pdf@filemdfivesum{#2.pdf}}%
\ifcsstrequal{#2mdfivesum}{temp@mdfivesum}{}{%
%file changed
\immediate\write18{pdfcrop #2 #2-crop.pdf}}%
\immediate\write\@auxout{\string\expandafter\string\gdef\string\csname\space #2mdfivesum\string\endcsname{\temp@mdfivesum}}%
\includegraphics[#1]{#2-crop.pdf}\endgroup}
\makeatother
\begin{document}
\includeCroppedPdf[width=\textwidth]{abc}
\end{document}