Attached is my proposal for the feature I suggested. My quick tests
pass[1]. Better tests by someone knowledgeable in graphics would be 
useful, as well as a test in the test suite.

HTH,

--
Emmanuel Charpentier

[1] I get unrelated failures from "make test" :
4 unexpected results:
   FAILED  test-org-clock/clocktable/extend-today-until
   FAILED  test-org-clock/clocktable/step
   FAILED  test-org/timestamp-from-string
   FAILED  test-org/timestamp-from-time

I can't see any link with my proposal. BTW, I get the same failures
from the unmodified master branch (fetched this morning...).

Le vendredi 19 avril 2019 à 09:27 +0200, Emmanuel Charpentier a écrit :
> Dear list,
> 
> Most graphics-able exporters support some form of a scale parameter,
> sizing the resultant image as a function of the original graphics
> file
> (intended) size.
> 
> This is true for:
>   * built-in ODT exporter
>   * ox-pandoc Latex/ODT/DOCX exporters.
> 
> This possibility comes handy to avoid (or at least master) the side
> effects of scaling (fonts amplification, /reduction, bitmap
> fuzinness,
> etc...).
> 
> It should be supported on the native LaTeX exporter (and possibly
> "scale: 1" may become the default...).
> 
> In addition (but this is probably a different problem), some
> scaling/sizing mechanism may be implemented for the HTML exporter.
> 
> --
> Emmanuel Charpentier
>