Dear John，

Thanks very much for your help.

I have tried your code but nothing happened. However, I think it is close
to my remand.

I have some questions about your code:

1. When should this command be called?  Don't I need to call it before the
org-latex-pdf-process?

2. I use xelatex to render my .tex files. Because xelatex can not recognize
the boundingbox of both .png and .pdf,
   so I need to generate .ebb for them in seperate folders, which are PNG
and PDF folders respectively. so i think
  you did not mention them?

I am studying elisp now, but your code is really difficult for me, so can
you help me dig in?

Best regard!




On Fri, Apr 25, 2014 at 10:54 PM, John Kitchin <jkitchin@andrew.cmu.edu>wrote:

> This is how I do what I think you are describing. I just take off the
> extension, and let (pdf)latex pick the extension it wants.
>
> (defun ox-manuscript-remove-image-extensions ()
>   "Removes .png extensions from \includegraphics directives in an exported latex file.
>
>
>
>
> Run this from an org-buffer after you have exported it to a LaTeX file"
>   (interactive)
>   (let* ((org-file (file-name-nondirectory (buffer-file-name)))
>          (tex-file (replace-regexp-in-string "org$" "tex" org-file))
>          (tex-contents (with-temp-buffer (insert-file-contents tex-file) (buffer-string))))
>
>
>
>     (message tex-file)
>     (with-temp-file tex-file (insert (replace-regexp-in-string
>
>
>
>                                       (concat "\\(\\includegraphics"
>                                               "\\(\[?[^\].*\]?\\)?\\)"       ;; match optional [stuff]
>
>
>
>                                               "{\\([^}].*\\)\.\\(png\\)}")
>                                       "\\1{\\3}"  tex-contents)))))
>
>
>
>
>
> John
>
> -----------------------------------
> John Kitchin
> Associate Professor
> Doherty Hall A207F
> Department of Chemical Engineering
> Carnegie Mellon University
> Pittsburgh, PA 15213
> 412-268-7803
> http://kitchingroup.cheme.cmu.edu
>
>
>
> On Thu, Apr 24, 2014 at 8:46 AM, Leu Zhe <lzhes43@gmail.com> wrote:
>
>>  I am using org-mode to write some article now. Org-mode is really a
>> great tool to outline a article with great table and image support.
>>
>> Org-mode can display inline .png image but not .pdf file. Because now
>> org-mode can not control the width or height of shown inline image, so i
>> use matplotlib to produce low dpi .png image in PNG folder for inline
>> display and higher dpi pdf image in PDF folder for finally article export.
>>
>> In .org file, the image link is like [[file:PNG\*.png]] and
>> \includegraphics{PNG\*.png}in the produced .tex file. Then emacs will
>> use org-latex-pdf-process to render it to pdf file. What I want is that
>> before or in org-latex-pdf-process, a regexp replace function is added
>> to replace the \includegraphics{PDF\*.pdf}, and then produce the final
>> pdf file.
>>
>> Can anyone give a hand?
>>
>
>