Thanks. Indeed I am using an older version of org. Adding grffile to org-latex-default-packages-alist solves the problem.

Regards,
Dov

On Tue, Jun 23, 2015 at 5:41 PM, Rasmus <rasmus@gmx.us> wrote:
Dov Grobgeld <dov.grobgeld@gmail.com> writes:

> Running pdflatex on the tex file yields:
>
> ! LaTeX Error: Unknown graphics extension: .5.jpg .
>
> The problem has nothing to do with the org exporting, and is a LaTeX
> limitation that I can live with. Case closed. :-)

This should not happen in a recent version of org 8.3 as grffile was added
to org-default-packages-alist.

Rasmus

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