Over at The Art of Not Asking Why, JTR has a nice post on attaching an image file to an Org file and displaying it inline. He begins by reviewing how to display an image file inline in an Org file and how to attach any file to an Org file. Most experienced Org users are familiar with all this. I used them just the other day to attach a delivery receipt for my tax papers to my accountant.
It’s the second half of his post that’s interesting. It turns out that when you attach a file to an Org file, the link to the attached file is added to org-stored-links just as if you had run org-store-link (bound to Ctrl+c l by default). That means you can insert the image in line by simply running org-insert-link (bound to Ctrl+c Ctrl+l by default) as usual.
Take a look at JTR’s post for all the details. If you often attach image files to an Org file and want to display them inline as well, this workflow is easy and efficient.