Thanks for your reply.
Do you mean that  #+OPTIONS: tex:imagemagick  must be mentioned first?
In my opinion something is wrong in my setup and it is difficult for me to
see what's wrong. Even a minima-init.el  file is not helpful...

Best wishes,

Jo.


2014-07-06 10:39 GMT+02:00 briangpowell . <briangpowellms@gmail.com>:

> * PNG is "lossless" format--if you can, make it the first file you create
> rather than last.
>
> ** If you create a JPG a "lossy" format then you could lose some of the
> beauty (like your example).
>
> * ImageMagick has many switches you can throw--suggest you look deeper
> into it in the freely available manual--though its very thick.
>
> * Often there are blah2blah programs (and many methods in ImageMagick for
> example) available which may help that you may be able to string together.
>  General example:
>
> dvips -o blah.dvi
>
> ps2pdf blah.ps
>
> pdf2png blah.pdf
>
> ** Maybe you can convert your file to an intermediary format and then
> convert it to .png
>
> *** But again, if possible, create a PNG (.png) type file firstly since it
> is a "lossless" file type.
>
>
>
>
>
> On Sun, Jul 6, 2014 at 4:03 AM, Joseph Vidal-Rosset <
> joseph.vidal.rosset@gmail.com> wrote:
>
>> Hello everybody,
>>
>> To convert equations from *.org  into *.html, Mathjax is certainly the
>> best solution but unfortunately, this solution does not work as soons as
>> one need to use some texlive package convenient to produce easily proofs in
>> specific format
>> (for example if one uses bussproofs.sty of fitch.sty ).
>>
>> That is why imagemagick is useful. Unfortunately, the produced png images
>> in my ltxpng/ have a very bad quality and if the browser load them, the
>> result is terrible.
>> I met already this problem and I do not remind what was the solution...
>>
>> I you have suggestions...
>>
>> Best wishes,
>>
>> Jo.
>>
>> PS: in attachment, an example of this terrible png images.
>>
>
>