Hi Rainer, Rainer M Krug <rai...@krugs.de> writes: > Andreas Leha <andreas.l...@med.uni-goettingen.de> writes: > >> Hi Marco, >> >> Marco Wahl <marcowahls...@gmail.com> writes: >>> Andreas Leha <andreas.l...@med.uni-goettingen.de> writes: >>> >>>> how would I export an org file containing >>>> >>>> [[file:./myimage.pdf]] >>>> >>>> to html so that a say png version myimage.pdf is inlined in the html >>>> which links to the pdf? >>>> >>>> I guess it should be possible to run imagemagick on all pdf links during >>>> export somehow. >>> >>> You could introduce a relation of the pdf-filenames to the respective >>> thumb-filenames e.g. by using the suffix '_thumb'. Before the export >>> the conversion tool would create the thumbs. >>> >>> The org-file could reference the data as >>> >>> [[file:./myimage.pdf][file:myimage_thumb.png]] >>> >>> See the info page (info "(org)Images in HTML export")? >>> >>> Untested. I just accidentially browsed that info page yesterday. >>> >>> >> >> Thanks for your thoughts. I would like to automate all of that. So, I >> guess the first question is where to put code that would trigger the >> conversion and how to best detect links to pdfs. > > Well - this is coming again and again - but no solution out of the > box. There are effectively two approaches: > > 1) Macro to change properties according to backend used. > > One usage is changing the file name extension according to the > backend. This is implemented as a simplified macro below. This could > be done by using ~(by-backend (html "graph.png") (latex "graph.pdf") (t > "graph.pdf"))~ > > See > [[http://orgmode.org/worg/org-contrib/babel/languages/ob-doc-LaTeX.html#sec-4-3][work > section ob-doc-LaTeX]] for details. > > #+begin_src emacs-lisp > (setq org-babel-latex-htlatex "htlatex") > (defmacro rmk-by-backend (&rest body) > `(case (if (boundp 'backend) (org-export-backend-name backend) nil) > ,@body)) > #+end_src > > 2) To use svg image format, which is supported by both (although has > it's drawbacks: slow rendering of the html, need to run external programs > upon compilation) > > So the first might be the modst feasible option. >
Thanks for this. I am aware of how to *produce* graphics in different formats for different export backends. I use your first approach, which I think is the better solution. Here, I am after a solution, that works on images that are not produced but merely included via [[file:./some.pdf]]. I think there should be the possibility to include these into html (and odt) export without any user interaction. So, I - do not want to write a source block just to produce the by-backend image - do not want to change the link manually - do not want to run the converter manually I am pretty sure this should be achievable with standard orgmode tools (like filters, export hooks, or anything). Since 'this is coming again and again' it seems a non-esoteric task. And as there is 'no solution out of the box', I assume(d) that somebody has written these filters already. Regards, Andreas
