When I paste the URL of an image into an org-mode file and then export it to HTML, the remote image URL gets turned into an
img tag and displayed in my HTML file without the need for me to save the image locally.
For instance, if I have a file
foo.org consisting solely of the text
https://vetstreet-brightspot.s3.amazonaws.com/fa/19/73e1a8864e8a868b30d728f81431/most-popular-puppy-names-2016-thinkstockphotos-527135315.jpg, it will export to an HTML file with a viewable image.
I'd like to do the same thing with PDFs. How can I include remote images when exporting to PDF via LaTeX?