In an Emacs org-mode file, when I click on a PDF the file opens in a PDF viewer. Similarly, when I click on a URL it opens in a web browser. But when I click on a path to an image file, the byte stream opens as text in the editor. How do I configure Emacs/org-mode to open images with a specified application, say an image editor or a browser?
Since ORG files are saved in plain text, you can also open and edit them with a plain text or source code editor. Microsoft Notepad (Windows) and Apple TextEdit (macOS) are text editors bundled with their respective operating systems that support ORG files.
Emacs does not actually understand you are editing an Org document, yet. To enable Org mode on your current document, type M-x org-mode which will enable the Org mode on the current document. Those are minuses, not underscores.
Org Mode (also: org-mode; /ˈɔːrɡ moʊd/) is a document editing, formatting, and organizing mode, designed for notes, planning, and authoring within the free software text editor Emacs.
In org-mode, this is org-file-apps
that control what to do when clicking on a URL-like text.
It is configured by default to :
((auto-mode . emacs) ("\\.mm\\'" . default) ("\\.x?html?\\'" . default) ("\\.pdf\\'" . default))
As said in org-file-apps help : auto-mode
matches files that are matched by any entry in auto-mode-alist
, so all files Emacs knows how to handle. Using this with command emacs
will open most files in Emacs.
You may have image file extension configured in auto-mode-alist. You could override this alist by doing something like this in your .emacs (for example, for png files) :
(add-hook 'org-mode-hook '(lambda () (setq org-file-apps (append '( ("\\.png\\'" . default) ) org-file-apps ))))
With this code, when I click on a link like this :
file:///e:/jrx/emacs/image.png
It opens the file outside emacs, using the default OS program associated to this file extension.
You don't have to change org-file-apps-defaults-windowsnt
, org-file-apps-defaults-gnu
or org-file-apps-defaults-macosx
to use the OS default program associated to the file extension.
It depends a bit on what operating system you use, but it should be configurable with org-file-apps
.
open
(or open -a Application.app
) for opening files automagicallyxdg-open
(a bit tricky to setup, tho)open
(in the console)Look at the variables org-file-apps-defaults-windowsnt
, org-file-apps-defaults-gnu
or org-file-apps-defaults-macosx
depending on your plattform.
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