Setting #+ATTR_LATEX for all images of a document

Question

I am currently adding an #+ATTR_LATEX before every image in my org-file to center it in the produced LaTeX beamer slides. That is slightly annoying and clutters up the document.

Is there a way to set an #+ATTR_LATEX for all images or even just for the whole .org file?

Answer 1

There is the org-latex-image-default-option variable. Would that do for you? I'm using a shell function for a fixed image width, perhaps you can use something similar:

orgexp()
{
    emacs  --batch -l ~/.emacs --eval \
           "(progn
             (setq org-latex-image-default-width \".4cm\"
                   org-export-allow-bind-keywords t
                   org-confirm-babel-evaluate nil)
             (find-file \"$1\") (org-latex-export-to-pdf))"
}

So I simply call

orgexp myorgfile.org

to get a PDF where all images are .4 cm wide.