Centering a .jpg image in PDF using Imagemagick?

The following works perfectly for me: convert -page A4 red. Jpg -gravity center -format pdf out. Pdf and if you change the order of the "files" it works too: convert -page A4 red.

Jpg xc:white -gravity center -composite -format pdf out. Pdf I think the red. Jpg is centered but the white is drawn on top of it.

Awesome - many thanks, @John Keyes! I could have sworn I had already tried something with -format pdf and I failed; but I'm trying yer first command line and it works great! :) Thanks again - cheers!

– sdaau Sep 28 at 23:15 You're welcome. I've gone down the rabbit hole of ImageMagick options many times. – John Keyes Sep 28 at 23:23.

14514), which seems to reliably place images on page, and preserve them fully: % note: need to run pdflatex twice! First time generates blank pages! % convert -size 1228x1706 -background \#f44 -rotate 45 gradient:\#f00-\#fff red.

Jpg % convert -size 595x1400 xc:red redlong. Jpg \documentclassa4paper{letter} \usepackage{graphicx} \usepackagehmargin=0.5cm,vmargin=0.5cm{geometry} % sets page margins \usepackage{tikz} \usetikzlibrary{calc} \newcommand{\imagepage}1{ \tikzoverlay,remember picture\coordinate (image-start); \par \vfill \null\hfill \begin{tikzpicture}overlay,remember picture \path let \p0 = (0,0), \p1 = (image-start) in node inner sep=0pt,outer sep=0pt,anchor=center at (current page. Center) {% \pgfmathsetmacro\imgheight{\y1-\y0}% \includegraphicsheight=\imgheight pt,width=\textwidth,keepaspectratio{#1}% }; \end{tikzpicture}% } \begin{document} % there must be a \n\n after {letter!

} \begin{letter} \imagepage{red. Jpg} \end{letter} \begin{letter} \imagepage{redlong. Jpg} \end{letter} % see also \resizebox{\textwidth}{!

}{\includegraphics{red. Jpg}} \end{document} Note, the letter documentclass is used to allow that each image is split on separate page..

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