Jean Louis, when publishing, one presents a data structure ~org-publish-project-alist~ that defines the back ends and options for publishing actions. the options are here: ---- https://orgmode.org/manual/Publishing-options.html#Publishing-options ----
below is an example. as you can see, publishing to different back ends can have different values for a given option. (well, not that i do it that much here...) cheers, Greg ---- (setq org-publish-project-alist '(("ess-org-html" :with-toc nil :base-directory "./" :publishing-directory "./artefacts" :exclude ".*" :include ("ess-org.org") :publishing-function org-html-publish-to-html) ("ess-org-pdf" :with-toc nil :base-directory "./" :publishing-directory "./artefacts" :exclude ".*" :include ("ess-org.org") :publishing-function org-latex-publish-to-pdf) ("ess-org-beamer-html" :with-toc nil :base-directory "./" :publishing-directory "./artefacts" :exclude ".*" :include ("ess-org-beamer.org") :publishing-function org-html-publish-to-html) ("ess-org-beamer-pdf" :with-toc nil :base-directory "./" :publishing-directory "./artefacts" :exclude ".*" :include ("ess-org-beamer.org") :publishing-function org-beamer-publish-to-pdf) ("ess-org" :components ("ess-org-html" "ess-org-pdf" "ess-org-beamer-html" "ess-org-beamer-pdf"))))